EMT Practice Test

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B. Choice B

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Question List

Question1: XZ company requires to build its network based on the modular enterprise network architecture. Z company in Shenzhen and Xi'an each 1 R & D base ; save Beijing and Shanghai have an office building ; save 23 provincial capital cities with more than 50 people in the office ; the 200 has no more than smaller cities 8 small office person ; At any given time, there are usually more than 200 marketing and technical personnel on business trips, and some of them are often located in areas lacking Internet access and can only dial in to the headquarters through the telephone network.Due to environmental and cost issues, some offices cannot access the headquarters through dedicated lines or packet-switched wide area network connections.According to these circumstances, the network module that Z company should have is _____ .

Question2: The configuration commands on the MSR router are as follows:
acl number 2001
rule 0 permit source 192.168.2.0 0.0.0.2
acl number 2002
rule 0 permit source 192.168.3.0 0.0.0.2
acl number 2003
rule 0 permit source 192.168.0.0 0.0.0.2
#
traffic classifier 2 operator or
if-match acl 2001
if-match acl 2002
if-match acl 2003
#
traffic behavior 2
filter den
#
qos polic 2
classifier 2 behavior 2
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos appl polic 2 outbound
Then when the source address are 192.168.2.2 , 192.168.3.2.1 , 92.168.0.2 the packets from the port G0 / 1 forwarding outwardly, the following statement is correct ______

Question3: According to the different network levels, VPN can be divided into the following types

Question4: Which of the following is correct about the encryption algorithm?

Question5: 8 In the configuration of stateful inspection firewall, _____ must be configured.

Question6: Which of the following command to check MPLS LDP 's Session whether to establish complete ?

Question7: When the user uses the phone, after picking up the phone handle and inputting the called number, what kind of signaling does the ring back from the receiver belong to ______ .

Question8: In the basic configuration of L2TP in independent LAC mode, the correct description of the local name of the tunnel is ____ .

Question9: Which of the following statements about LR is incorrect is

Question10: The following commands are configured on an interface of the router:
qos car inbound an cir 1000 cbs 62500 ebs 0 green remark-dscp-pass ef red remark-dscp-continue af13
When the port receives packets, the following statement is correct _____

Question11: The following options belong to the co- side equipment is ____ .

Question12: To clear the secure tunnel established by ike , which of the following commands should be used ?

Question13: Among the following ADSL standards, the one that does not need to use a splitter is ____ .( Choose one or more )

Question14: Configure the following commands on the MSR router:
qos pql 1 protocol-ip-tcp1000 queue-top
qos pql 1 protocol-ip-tcp1001 queue-middle
qos pql 1 protocol-ip-tcp1002queue-normal
qos pql 1 protocol-ip-tcp1003 queue-bottom
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos lr outbound cir 10000 cbs 625000 ebs 0
qos pq pql 1
qos rtpq start-port 16384 end-port 32767 bandwidth 1000 cbs 25000
Then when the destination port are 1000 , 1001 , 1002 and 1003 of the TCP packet and matching with RTPQ the flow rates of at 4Mbps speed feed into the MSR , and from the side port G0 / 1 forwarding, the following statements is correct is ______

Question15: Which of the following descriptions about GRE VPN configuration is correct is ____ .( Choose one or more )

Question16: How to view BGP private network routes learned by PE equipment

Question17: Which of the following messages is used by the called party to indicate to the calling party that the call request is being processed and will not receive other call setup information for the call request ?

Question18: Which of the following codes has the lowest requirement for broadband?

Question19: EPON ranging and delay compensation technology is the key to upstream channel multiplexing, which is mainly realized through the _____ process defined by MPCP .( Choose one or more )

Question20: It can be judged that this is a technical application based on the networking shown in the figure and the following configuration.
RTA:
[RTA] ike peer 123
[RTA-ike-peer-123] pre-shared-ke simple 123
[RTA-ike-peer-123] remote-address 100.1.1.2
.......<-i
IRTA-ike-peer-123] local-address 100.1.1.1
[RTA-ike-peer-123]quit
[RTA] ipsec proposal 1
IRTA-ipsec-propos al-l]quit
[RTA]acl number 3000
[RTA-acl-adv-3000] rule 0 permit ip source 192.168.1.0 0.0.0.255 destination 192.168.2.0 0.0.0.255
[RTA]ipsec polic 1 1 isakmp
[RTA-ipsec-polic-isakmp-ll] securit acl 3000
[RTA-ipsec-polic-isakmp-ll] ike-peer 123
[RTA-ipscec-polic-isakmp-ll] proposal 1
[RTA-ipsec-polic-isakmp-ll] quit
[RTA] interface EthernetO/1/1
[RTA-Ethernet0/1/1] ip address 10.1.1.1 255.255.255.0
[RTA] interface EthernetO/l/0
[RTA-Ethernet0/1/0] ip address 192.168.1.1 255.255.255.0
[RTA] interface Loopback0
[RTA-LoopbackO]ip address 1.1.1.1 255.255.255.255
[RTA] interface Tunnel 1
[RTA-Tunnel1]source 1.1.1.1
[RTA-Tunnel1]destination 2.2.2.2
[RTA-Tunnell]ip address 100.1.1.1 255.255.255.0
[RTA-Tunnel1]keepalive
[RTA-Tunnell]ipsec polic 1
[RTA] ip route-static 2.2.2.2 255.255.255.255 10.1.1.2
[RTA] ip route-static 192.168.2.0 255.255.255.0 100.1.1.2
RTB:
[RTB] ike peer 123
[RTB-ike-peer-123] pre-shared-ke simple 123
[RTB-ike-peer-123] remote-address 100.1.1.1
[RTB-ike-peer-123] local-address 100.1.1.2
[RTB-ike-peer-123]quit
[RTB] ipsec proposal 1
[RTB-ipsec-proposal-l] quit
[RTB]acl number 3000
[RTB-acl-adv-3000] rule o permit ip source 192.168.2.0 0.0.0.255 destination 192.168.1.0 0.0.0.255
[RTB]ipsec polic 1 1 isakmp
[RTB-ipsec-polic-isakmp-ll] securit acl 3000
[RTB-ipsec-polic-isakmp-ll] ike-peer 123
[RTB-ipsec-polic-isakmp-ll] proposal 1
[RTB-ipsec-polic-isakmp-ll] quit
[RTB] interface Ethernet0/1/1
[RTB-Ethernet0/1/1] ip address 10.1.1.2 255.255.255.0
[RTB] interface Ethernet0/1/0
[RTB-Ethernet0/1/0] ip address 192.168.2.1 255.255.255.0
[RTB] interface Loopback0
[RTB-Loopback0] ip address 2.2.2.2 255.255.255.255
[RTB] interface Tunnell
[RTB-Tunnell]source 2.2.2.2
[RTB-Tunnell]destination l.1.1.1
[RTB-Tunnell]ip address 100.1.1.2 255.255.255.0
[RTB-Tunnell]keepalive
[RTA-Tunnell]ipsec polic 1
[RTB] ip route-static l.1.1.1 255.255.255.255 10.1.1.1
[RTB] ip route-static 1 92.1 68.1.0 255.255.255.0 1 00.1.1 .1

Question21: The following description of QoS jitter is correct.

Question22: MPLS labels a total of ______bit , which Label label value portion accounted _______bit .

Question23: A VoIP network is interconnected with a PSTN network and adopts the H.323 protocol.It is required that in addition to normal voice calls, it must also be able to conduct telephone conferences with more than three rooms.The VoIP network must include H.323 components including

Question24: Which statement about WFQ is correct?

Question25: In BGP MPLS VPN network, the user's private network packet can only carry a layer MPLS label, the private network packet which may be present in the following packet forwarding stage ?

Question26: The following statement about RED ( Random Early Detection ) is incorrect.

Question27: Compared with ordinary data flow, voice flow is more sensitive to delay and jitter.The field that can be used to mark voice traffic in a data packet for priority processing by network equipment is ____

Question28: The ______ in the data packet can be used to distinguish data streams for access control.

Question30: IPSec polic is configured between the two routers , after the policy is issued to the corresponding interface, the ping command is used to check the interoperability of the protected data flow, and it is found that the data passes 100% .Use displa ike sa and displa ipsec sa to order, it shows that IPSec SA is not established.
The reason for the failure of IPSec configuration is ____ .( Choose one or more )

Question31: The user wants to design an H.323 network and requires unified and centralized control of all call rights.Which of the following components are necessary ?

Question32: In the BGP MPLS VPN network, which of the following functions need to be supported by the P device ?

Question33: The changes of MP-BGP protocol relative to BGP protocol include

Question34: Which of the following access methods does SSL VPN provide ?

Question35: Use the displa ike peer command to display the following information on the device, and you can know ____ through this information .
IKE Peer: 123
exchange mode: aggressive on phase 1
pre-shared-ke simple 123
peer id tpe: na me
peer ip address: 10.2.1.1
local ip address:
peer name: aaa
nat traversal: enable
dpd:

Question36: In the GRE Tunnel interface view, configure the sending period of Keeplive packets to 10s , and determine the number of transmissions of Keeplive packets required for tunnel interruption to 3 , and the command is ____ .

Question37: Which of the following descriptions about H.323 terminals is correct is ____ .

Question38: Which of the following access methods does SSL VPN provide ?

Question39: The quality of service of a data network usually has different requirements due to different services.Compared with data services, voice and video services are more focused on

Question40: A company network through the corporate router RTA access port S0 / 0 is connected to the external network.In order to avoid congestion at the egress of the external network, the company hopes to limit the data traffic of various departments in the inbound direction of the RTA interface S0/0 .Which of the following technologies is appropriate ?

Question41: In VoIP networks, the bandwidth saved by VAD technology is related to which of the following factors ?

Question42: Which statements about the PKI workflow are correct?

Question43: In the basic configuration of L2TP in independent LAC mode , the description of the name of the local end of the tunnel is correct.

Question44: In a VoIP network, which of the following factors are related to the bandwidth saved by VAD technology ?

Question45: IntServ model has the following features ?

Question46: BGP MPLS VPN on a network station of the public network equipment, displa mpls ldp lsp command command checks its label forwarding table, the following results described _______ .
[PE1] dis mpls ldp lsp
LDP LSP Information
----------------------------------- --------------- ----------------------- --------------------------- ------------
SN DestAddress/Mask In/OutLabel Next-Hop In/Out-Interface
-------------------------------------------------- ------------------------------- ------------------- -------------
1 1.1.1.1/32 3/NULL 127.0.0.1 Eth0/0/InLoop0
2 1.1.1.2/32 NULL/1024 100.0.0.2 ---------Eth0/0
3 1.1.1.3/32 NULL/3 100.0.0.2 ---------Eth0/0

Question47: On a router perform row displa'interface tunnel explicit shown GRE tunnel interface as follows :
<Router>displa interface Tunnel 0
Tunnelo current statle: UP
Line protocol current state: UP
Description: Tunnel 0 Interface
T he Maximum transmit Unit is 1476
Internet Addess is 192.1.1.1/24 Primar.
Encapsulation isTUNNELT aggregation ID not- et
Tunnel source l0.1.11.1 destination 10.1.13.1
Tunnel keeepalive enable Period ( 10 s ) , Retries ( 3 )
Tunnel protocol/transport GRE/IP.
GRE key disable
Checksumming of GRE packets disabled
Last 300 seconds input:.0 btes/secl 0 packet/sec.
Last 300 seconds output:..0 bytes/sec , 0 packets/sec.
4 packets input 72bytes.
0 input error
1 packets output , 24 btes
0 0utput error
From the above information, we can know ____ .( Choose one or more )

Question48: The ZLB ( Zero-Length Bod ) message is a control message with only an L2TP header, and its function is to serve as an explicit response to ensure reliable delivery of the control message.
In the following four cases, LNS does not send ZLB message to LAC as a response: ____ .

Question49: According to Nquist 's theorem, the telephone system samples human voice ______ times per second in order to fully express the characteristics of the voice signal.( Fill in Arabic numerals )

Question50: A VoIP network using the H.323 protocol is interconnected with the PSTN network.Which of the following components must be included in the VoIP network to ensure that users can make local calls from the VoIP network

Question51: Among the control messages defined by the MPCP protocol, the one sent by the ONU is _____ .( Choose one or more )

Question52: Configure the following commands in the MSR router:
dis qos wfq interface GigabitEthernet0/1
Get the following message:
interface GigabitEthernet0/1
Output queue (Urgabit queuing Size /discards): 0/100/0
Output queue (Urgabit queuing Size /discards): 0/100/0
Output queue (weighted fair queuing Size/length /discards): 1023/1024/52719
Hashed b DSCP
Hashed queues1/2/64(Active/max active/total)
Then what is incorrect in the following statement is ______

Question53: Which statement about VoIP voice transmission is correct?

Question54: In the SIP network, which of the following devices belong to UA?

Question55: PPP link transmission portion of the packet header information remains the same, in order to improve the throughput of the link, it may be considered by ______ mechanism.

Question56: The wrong description of the relationship between RT and RD is ____ .

Question57: In a not yo enable MPLS down the number of the second jump technology BGP MPLS VPN group network, the private network packet arrived last hop PE , the following statement is correct is ______ .

Question58: use IKE is IPSec provides auto-negotiation key exchange and create SA during the service, in the IKE defines which of the first stage of consultation kinds of IKE exchange mode ?

Question59: In the L2TP networking, there are three ways for LNS to authenticate users: proxy authentication, mandatory CHAP authentication and LCP renegotiation.The highest priority is ____ .

Question60: 802.1p CoS divided the ______ Classes of Service.

Question61: From the perspective of network level, business or application, network security threats come from _____ .

Question62: AAA supports the accounting method of _____ .

Question63: Among the following broadband access transmission media, the ones that are more suitable for covering remote areas without traditional communication lines include

Question64: The incorrect description of L2TP VPN and GREVPN is ____ .( Choose one or more )

Question65: The following statements about PKI workflow are correct.

Question66: The advantages of the star-level network model include _______ ( choose one or more )

Question67: Configure the following commands on the MSR router:
qos pql 1 queue top queue-length 1024
qos pql 1 inbound-interface GigabitEthernet0/0 queue top
qos pql 1 protocol ip tcp 1000 queue top
qos pql 1 protocol ip tcp 1001 queue middle
qos pql 1 protocol ip tcp 1002 queue normal
qos pql 1 protocol ip tcp 1003 queue bottom
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos lr outbound cir 10000 cbs 625000 ebs 0
qos pq pql 1
From the interface G0 / 0 into the only access port G0 / 1 forwarding traffic directed include the destination port, respectively 1000 , 1001 , 1002 and 1003 of the TCP packet flow rates of 3Mbps , other background traffic 4Mbps , other interfaces no flow, then the following claims The incorrect one is ______ ( choose one or more )

Question68: Based on SOA network architecture to enterprise IT systems into which of the following levels ? ( Select one or more )

Question69: and IKE wild pretty model compared to, IKE main mode which has the following characteristics ?

Question70: According to different operating modes, VPN can be divided into the following types____ .

Question71: Which of the following descriptions of MPLS lsr-id is correct is _______ .

Question72: How does the PPP protocol identify the upper layer packets it carries as MPLS packets ?

Question73: xz company requires to build its network based on modular enterprise network architecture. Z company in Shenzhen and Xi'an with 1 R & D base, with an office in Beijing and Shanghai ; at 23 with more than capital cities 50 person office ; the 200 has no more than smaller cities 8 people in a small office j There are usually more than 200 market and technical personnel on business trips at any given time .Due to environmental and cost issues, some offices cannot access the headquarters through dedicated lines or packet-switched wide area network connections.According to these circumstances, the network module that Z company should have is ____ .

Question74: When SIP UA calls the called party through the redirect server, ____ .

Question75: About CBQ said correct method ______

Question76: To reinforce the company's network, you need to ____ user authentication and authorization.

Question77: Which of the following statements about SSL VPN deployment is correct is ______ .

Question78: How do you view PE device learns to BGP private network routes _______ .

Question79: When establishing a BGP MPLS VPN network, which of the following parameters need to be planned by the user and configured on the device ?

Question80: A PBX of a company in Beijing was originally connected to the operator's telephone network through an analog line.In order to expand the capacity, it was proposed to apply for a digital line from the operator . ______ is the most economical choice.

Question81: Which of the following descriptions about GRE are correct ? ( Choose one or more )

Question82: Among multiple VRF technologies, one VRF will have ______ .

Question83: The information displayed on the MSR router is as follows:
Sstem Defined Behavior Information:
Behavior: ef
Expedited Forwarding:
Bandwidth 20 (% ) Cbs-ratio 25
Behavior: af
Assured Forwarding:
Bandwidth 20 (%)
Discard Method: Tail
Behavior: be
-none-
Then the following statement is incorrect is _____

Question84: In the PPPoE application of ADSL , when the CPE side uses the MSR router + ADSL interface card for networking, and the CO side DSLAM uses ATM for uplink, which interfaces need to be PPPoE- related on the CO side centralized router ( PPPoE Server ) Configuration ?

Question85: When the link type of the ONU port is Trunk , its processing method for downstream messages is _____ .

Question86: During the SIP UA calling the called party through the proxy server,

Question87: by the security gateway device displa ipsec sa command displays the following order information, the information is understood by ______ .
Interface: Serial0/2/1
path MTU: 1500
=========================== ====
-----------------------------
IPsec polic name: "1"
sequence number: 1
mode: isakmp
-----------------------------
connection id: 5
encapsulation mode: transport
perfect forward secrec: None
tunnel:
local address: 10.2.1.1
remote address: 10.2.1.2
Flow:
sour addr: 10.1.1.0/255.255.255.0 port: 0 protocol: IP
dest addr: 10.3.1.0/255.255.255.0 port: 0 protocol: IP
[inbound ESP SAs]
spi: 909448761 ( 0x36351639 )
proposal: ESP-ENCRPT-DES ESP-AUTH-MD5
sa remaining ke duration ( btes/sec ) : 1887435204/83
max received sequence-number: 19
udp encapsulation used for nat traversal: N
[outbound ESP SAs]
spi: 1583842120 ( 0x5e678348 )
proposal: ESP-ENCRPT-DES ESP- AUTH-MD5
sa remaining ke duration ( btes/sec ) : 1887435204/83
max sent sequence-number: 20
udp encapsulation used for nat traversal: N

Question88: IP OVER IP of GRE encapsulation, the IP protocol number used ________ marking GRE header

Question89: To clear the established IPSec security association, which of the following commands should be used ?

Question90: What is correct about DOS attacks is ____ .

Question91: For the two upstream and downstream LSRs , for the label forwarding table of the same forwarding equivalence class, the correct description is _______ .

Question92: What is incorrect about the description of L2TP VPN and SSL VPN?

Question93: The following information about the AH ( the Authentication Header , Authentication Header ) and the ESP ( Encapsulating Securlt Paload , the Encapsulating Security Payload ) described right there ______ .( Choose one or more )

Question94: The user wants to design an H.323 network and requires unified and centralized control of all call rights.Which of the following components is not necessary ?

Question95: Among the following DSL technologies, the highest transmission rate is

Question96: After the MPLS LDP protocol Session is successfully established, its state remains in the ______ state.

Question97: The information displayed on the MSR router is as follows:
Sstem Defined Behavior Information:
Behavior: ef
Expedited Forwarding:
Bandwidth 20 (% ) Cbs-ratio 25
Behavior: af
Assured Forwarding:
Bandwidth 20 (%)
Discard Method: Tail
Behavior: be
-none-
Then the following statement is correct _____

Question98: The following statements about the client, LAC and LNS in L2TP are correct _____ .

Question99: RD is Route Distinguisher , and the correct description about it is ______ .

Question100: IPSec security policies which include several ____ .( Choose one or more )

Question101: The following information about H.323 describes terminal of the error is ____ .

Question102: Best-Effort model has the following features ?

Question103: In the GRE Tunnel interface view, the complete command to configure the tunnel encapsulation mode to GRE is

Question104: The configuration commands on the MSR router are as follows:
acl number 2003
rule 0 permit source 192.168.0.0 0.0.0.255
#
traffic classifier 1operator or
if-match acl 2003
#
traffic behavior 1
filter den
#
qos polic 1
classifier 1behavior 1
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos appl polic 2 outbound
Then when the source address are 192.168.2.2 , 192.168.0.2 the packets from the port G0 / 1 forwarding outwardly, the following statement is correct ______

Question105: Configure the CA ( Authoritative Certification Authority ) trusted by the PK domain as 3HCCA , and configure the URL of the registration server as ca , and the commands for h3c.com are respectively

Question106: When the user uses the phone, after picking up the phone handle and inputting the called number, which of the following signaling does the ringing of the called phone belong to ______ .

Question107: Which of the following codes has the lowest bandwidth requirement?

Question108: Which of the following H.225 messages are used by the called party to indicate the call processing progress status to the calling party ?

Question109: If the teams are each corresponding to a type of packets, the transmission ratio of the amount of each queue in order of increasing, both 1: 2: 3: ...: most large number of queues, port speed is assumed that the scheduling application 100Mbps , when the packets corresponding to each queue are forwarded at a speed of 20Mbps and the port is congested.The first 9 broadband packet queue may be used corresponding approximately to ______

Question110: If the user configures the packet filtering strategy incorrectly and filters all TCP packets, what happens to the call in the H.323 network ?

Question111: Which of the following H.225 messages called for the direction of the caller indicates that call processing progress state ?

Question112: About CBQ said law incorrect ______

Question113: Which of the following descriptions about GRE are correct ? ( Choose one or more )

Question114: When SIP-UA calls the called party through the proxy server, ____ .

Question115: Which of the following descriptions about H.323 terminals are correct?

Question116: An operator hopes to deploy ADSL ( ADSL2 ) to kill the system in a community with relatively dense users and short transmission distance .Users do not require high bandwidth, and pay more attention to its economy and ease of installation and maintenance.
Based on the above requirements, when choosing ADSL ( ADSL2 ) standard, the ideal is ____ .( Choose one or more )

Question117: In a VoIP network where calls are made through a gatekeeper , what will happen when the gatekeeper cannot determine the location information of the called terminal within its jurisdiction ?

Question118: In ADSL of PPPoE applications, when the CPE side using MSR router + ADSL interface card for networking, CO.'S side DSLAM using ATM uplink time, deposit CPE needs to interface on the router which side ( irrespective CPE side LAN Connection ) ?

Question119: According to the encapsulation form of the message, the IPSec working mode is divided into ____ .

Question120: The L2TP tunnel information can be displayed through the ____ command .

Question121: In the BGP MPLS VPN network, which of the following items ______ exist on the P device ?

Question122: The following statement about VoIP voice transmission is wrong

Question123: OLT issue register cancellation message 5 ONU issuing register_ACK message
3.The following statements about VLAN planning in the EPCNI network are correct: _____ ( choose one or more )

Question124: Common VPI/VCI values in ADSL applications include ____ .( Choose one or more )

Question125: In BGP MPLS VPN network, the public network P on the device, the root packet according _____ packet forwarding.

Question126: Configure the following commands on the MSR router:
qos pql 1 protocol-ip-tcp1000 queue-top
qos pql 1 protocol-ip-tcp1001 queue-middle
qos pql 1 protocol-ip-tcp1002queue-normal
qos pql 1 protocol-ip-tcp1003 queue-bottom
#
interface GigabitEthernet0/1
port link-mode route
ip address 192.168.1.1 255.255.255.0
qos lr outbound cir 10000 cbs 625000 ebs 0
qos pq pql 1
qos rtpq start-port 16384 end-port 32767 bandwidth 1000 cbs 25000
Then when the destination port are 1000 , 1001 , 1002 and 1003 of the TCP packet and matching with RTPQ the flow rates of at 4Mbps speed feed into the MSR , and from the side port G0 / 1 forwarding, the following statements is correct is ______

Question127: In the SIP network, when the redirect server receives the session request message sent by the calling UA ,

Question128: G A good safety system should be _____ .

Question129: In the H.323 call flow, if two terminals registered to the same gatekeeper use the direct call mode, then

Question130: Which of the following descriptions of the traditional telephone system is correct is ____ .

Question131: In the GRE encapsulation of IP over IP , IP uses the protocol number ____ to mark the GRE header.

Question132: For the label forwarding table of an LSR , the correct description is _______ .

Question133: The calling UA sends a request message and receives a 200 OK response from the called UA .How can the calling UA cancel the request ?

Question134: Please add the correct parameters in the following PPPoE Cllent configuration:

Question135: Which statement about RED ( Random Early Detection ) is correct?

Question136: In L2TP VPN in, the LAC ( the L2TP Access Concentrator , the L2TP Access Concentrator ) received from the remote system transmitted to the server side lP after the data packet, that the packet will be sent to the respective packages L the NS ( the L2TP the Network Server , L2TP network server ) , the encapsulation format of the data packet transmitted between LAC and LNS is

Question137: The interconnection between ordinary telephones , PBXs and other devices has a unified interface standard, including analog and digital interfaces.The following belong to the digital voice interface is ______ .

Question138: The following are functions of the access layer ____ .( Choose one or more )

Question139: Use the displa ike peer command to display the following information on the device, and you can know from this information ____ .
KE Peer: 123
exchange mode: aggressive on phase 1
pre-shared-ke simple 123
peer id tpe: name
peer ip address: 10.2.1.1
local ip address:
peer name: aaa
nat traversal: enable
dpd:

Question140: Which of the following information about the private network route learned from the remote end through the MP-BGP protocol will be recorded by the PE ?

Question141: Which of the following descriptions about the structure of SIP messages are correct ?

Question142: According to the network and the following configuration, it can be judged that this is an application of ______ technology.
RTA:
[RTA]ik e peer 123
[RTA-ike-peer-123] pre-shared-ke simple 123
[RTA-ike-peer-123] remote-address 10.1.1.2
[RTA-ike-peer-123] local-address 10.1.1.1
[RTA-ike-peer-123] quit
[RTA]ipsec proposal l
[RTA-ipsec-proposal-1]quit
[RTA]acl number 3000
[RTA-acl- adv-3000] rule 0 permit ip source 1.1.1.1 0.0.0.0 destination 2.2.2.2 0.0.0.0
[RTA]ipsec polic 1 1 isakmp
[RTA-ipsec-polic-isakmp-1-1] securit acl 3000
[RTA-ipsec-polic-isakmp-1-1] ike-peer 123
[RTA-ipsec-polic-isakmp-1-1] proposal 1
[RTA-ipsec-polic-isakmp-1-1]quit
[RTA] interface Ethernet0/1/1
[RTA Ethernet0/1/1] ip address 10.1.1.1 255.255.255.0
[RTA Ethernet0/1/1]ipsec polic l
[RTA]interface Ethernet0/1/0
[RTA Ethernet0/1/0] ip address 192.168.1.1 255.255.255.0
[RTA]interface loopback 0
[RTA- Loopback0]ip address 1.1.1.1 255.255.255.255
[RTA]interface Tunnel 1
[RTA-Tunnel1]source 1.1.1.1
[RTA-Tunnel1]destination 2.2.2.2
[RTA-Tunnell]ip address 100.1.1.1 255.255.255.0
[RTA] ip route-static 2.2.2.2 255.255.255.255 10.1.1.2
[RTA] ip route-static 192.168.2.0 255.255.255.0 100.1.1.2
RTB:
[RTB] ike peer 123
[RTB-ike-peer-123] pre-shared-ke simple 123
[RTB-ike-peer-123] remote-address 10.1.1.1
[RTB-ike-peer-123] local-address 10.1.1.2
[RTB-ike-peer-123]quit
[RTB] ipsec proposal 1
[RTB-ipsec-proposal-l] quit
[RTB]acl number 3000
[RTB-acl-adv-3000] rule o permit ip source 2.2.2.2 0.0.0.0 destination l.1.1.1 0.0.0.0
[RTB]ipsec polic 1 1 isakmp
[RTB-ipsec-polic-isakmp-ll] securit acl 3000
[RTB-ipsec-polic-isakmp-ll] ike-peer 123
[RTB-ipsec-polic-isakmp-ll] proposal 1
[RTB] interface Ethernet0/1/1
[RTB-Ethernet0/1/1] ip address 10.1.1.2 255.255.255.0
[RTB-Ethernet0/1/1] ipsec polic 1
[RTB] interface Ethernet0/1/0
[RTB-Ethernet0/1/0] ip address 192.168.2.1 255.255.255.0
[RTB] interface Loopback0
[RTB-Loopback0] ip address 2.2.2.2 255.255.255.255
[RTB] interface Tunnell
[RTB-Tunnell]source 2.2.2.2
[RTB-Tunnell]destination l.1.1.1
[RTB-Tunnell]ip address 100 , 1.1.2 255.255.255.0
[RTB-Tunnell]keepalive
[RTB] ip route-static l.1.1.1 255.255.255.255 10.1.1.1
[RTB] ip route-static 1 92.1 68.1.0 255.255.255.0 1 00.1.1 .1

Question143: Which statement about LR is correct?

Question144: Among the control messages defined by the MPCP protocol, the one sent by the ONU is

Question145: If the device is employed with a double rate burst single token bucket algorithm for traffic measurement, assume that a moment about a 400 -byte packet arrives, then CBS so that the number of tokens in the token bucket is 300 bytes , The number in the EBS token bucket is 500 bytes, and the message will be marked as

Question146: The four routers R1 , R2 , R3, and R4 are connected in sequence, and Loopback0 interfaces are created on R1 and R4 , and the interface addresses are 1.1.1.1 and 4.4.4.4 respectively.The four devices are configured with dynamic routing protocols to ensure Loopback0 of R1 and R4 .The address is reachable, and a GRE Tunnel is established between R1 and R4 .Check the tunnel interface information on R1 as follows:
[R1]displa interface Tunnel 0
Tunnelo current state: UP
Line protocol cu rrent state: UP
Description: Tunnelo Interface
The Maximum Transmit Unit is 1476
Internet Address is 10.0.0.1/30 Primar
Encapsulation is TUNNEL , aggregation ID not set
Tunnel source l.1.1.1 , destination 4.4.4.4
Tunnel keepalive disable
Tunnel protocol/transp ort GRE/IP
GRE ke disabled
Checksumming of GRE packets disabled
Last 300 seconds input: 2 btes/sec , 0 packets/sec
Last 300 seconds output: 2 btes/sec , 0 packets/sec
15 packets input , 840 btes
0 input error
27 packets output , 1248 btes
0 0utput error
At this time, if the link between R2 and R3 is interrupted , the following statement is correct.

Question147: The following part does not belong to the SSL/TSL specification

Question148: IP head ToS field provides a ______ a DSC code points.

Question149: In the VoIP network, which of the following factors has nothing to do with the bandwidth saved by VAD technology ?

Question150: The VPI/VCI parameters of ADSL connection are negotiated and determined in ____ .

Question151: A secure network must meet the conditions of ______ .

Question152: Which of the following statements about SSL VPN deployment is correct is ______ .