EMT Practice Test

1. Question Content...

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Question1: On an S-Series switch, what two events occur when a static null route has been configured in the system to drop a packet? (Choose two.)

Question2:
Refer to the exhibit.
On switch S4820-1, commands are entered. The associated output is as shown.

What correctly defines the state of the Root Bridge for VLAN 2 and VLAN 3?

Question3:
Refer to the exhibit.
A customer has a C-Series chassis using a 48-port PoE+ line card. A workstation connected to Gi 0/47 passes traffic as expected. When the customer connects a PoE phone to the interface, the phone does NOT power up.
Which configuration should a network engineer set on the Gi 0/47 interface to provide power to the phone?

Question4: A network engineer needs to make sure that the first 16 switchports on an S-Series switch are enabled for immediate forwarding when a computer or server is connected. The ports must be shut down if a switch with default configuration is connected. The S-Series switch is already configured for IEEE 802.1w.
Which commands meet the requirements for the switchports?
A:

B:

C:

D:

Question5:


Refer to the exhibits.
A customer upgrades its C-Series switch and is experiencing a constant boot loop.
Which two options allow the switch to boot successfully using the newer firmware? (Choose two.)
A:

B:

C:

D:

E:

Question6:
Refer to the exhibit of the N-series switches.
The exhibit shows a Layer 2 network between Host A (a Desktop Computer running Windows 7) and Host B (another Desktop Computer running Windows 7) and the list of VLANs Untagged (U) and Tagged (T) at each Ethernet interface: Host A transmits an Ethernet frame untagged on VLAN 1.
What will happen to the Ethernet frame?

Question7: Two Dell S-Series Switches are directly connected.

Which statement describes what will happen when a ping is sent from Dell-1 to Dell-2?

Question8: In an OSPF network, a network engineer uses a loopback interface with an assigned IP Address instead of configuring an IPv4 address as the Router I.
What are two benefits of this choice? (Choose two.)

Question9:
Refer to the exhibit.
A customer has a SAN deployment consisting of a single Dell server and Equallogic storage array on a segregated VLAN communicating over a C9010. The storage arrays are reporting excessive ISCSI retransmits.
Which configuration change should a network engineer apply to resolve this issue?

Question10: By default, how often are Bridge Protocol Data Units (BPDUs) sent with reference to 802.1w?

Question11: Refer to the output.

According to the partial configuration, which two things have occurred? (Choose two.)

Question12: A network engineer is implementing MLAG using two N-Series switches, MLAG must be set up with 10 Gb ports and connecting to a single S-Series switch that will run 802.3ad to the MLAG Peers. The commands will be identical on the two N-Series switches. All ports on the N-Series switches are available to use. The VLAN that must be used is 10. The management interface on each N-Series switch has already been assigned an IP address.
Which set of commands should be used to meet the requirement for MLAG?
A:

B:

C:

D:

Question13: A network engineer is assigning any available switchport to a management VRF on an S-Series switch.
The address to be used is 10.1.1.1, with a subnet mask of 255.255.255.0.
Which syntax should the network engineer use?
A:

B:

C:

D:

Question14: Which two management protocols are most secure? (Choose two.)

Question15: The network engineer powers on a new S-Series switch. None of the devices connected to this new switch are responding to pings.
Which two conditions should the network engineer verify? (Choose two.)

Question16: A network engineer is verifying the configuration of a LAG connection on an S-Series switch.
Which two commands should the network engineer use to determine the operation of the LAG? (Choose two.)

Question17:
Refer to the exhibit.
The trunk links are being over utilized. A network engineer needs to resolve the issue by pruning the trunk links of unnecessary vlans. Each switch must be management accessible via VLAN 1.
What are the allowed vlans on each trunk link?

Question18: A network deployment engineer needs to deploy four Dell Networking N1500 series switches. All switches are to be stacked together using 10Gbe ports on each switch and implement OSPF per the deployment plan. The customer has been shipped only the four switches with SAS stacking cables. No other equipment has been shipped.
Which two issues occur when the network engineer tries to stack all four switches and implement OSPF?
(Choose two.)

Question19:
Refer to the exhibit.
A network engineer is called onsite to troubleshoot replication failure and traffic loss. Whenever replication occurs between SAN A and SAN B, users report traffic loss between sites, and replication ultimately fails due to traffic loss.
Based on the topology shown, what is the most likely cause of the traffic loss?

Question20: A network engineer has connected a Port Extender to a C-Series switch. While issuing the command
"show pe brief" on the C-Series switch, the engineer sees a status of "offline".
Which two things could be causing the Port-Extender to show "offline"? (Choose two.)

Question21:
Refer to the exhibit.
On switch S4820-2, commands are entered. The associated output is a follows:

Which command MUST have been entered previously on switch S4820-1?

Question22:




Refer to the exhibits.
An organization has a network with the following configuration:
* 2x C-Series chassis in a VLT
* Identical 10Gb line cards in each C-Series chassis
* A Hyper-V Server directly connected to Te 0/1 on each C-Series chassis
* A VLT Port-Channel connected to a two port switch independent team on the server used for vSwitch Virtual Machine traffic
The Server Admin reports connectivity issues to the VMs on the server.
* Virtual Machines cannot ping outside of the local Server and cannot be reached from the LAN.
* All Virtual Machines are connected to the same vSwitch.
* All Virtual Machines are able to ping each other internally.
* All Virtual Machines are tagged in VLAN 10.
* All Nics on the Hyper-V Server are up.
What is causing the ping loss?

Question23: A network engineer needs to summarize the IP range of addresses from 172.16.32.0 to 172.16.35.255.
What is the most effective choice?

Question24:
Refer to the Exhibit.
A network engineer receives the output shown when removing MLAG from a pair of N-Series switches.
Which sequence of steps must the engineer complete to remove the vpc peer-link from Port Channel
1?

Question25: The status LED is blinking RED for an N-Series switch.
Which system behavior is indicated?

Question26:
Refer to the exhibit.
Switch A needs to be able to have full reachability to the entire networking fabric through the use of static routes. All other devices have reachability to Switch A
Which two static routers meet the requirement? (Choose two.)

Question27: A network engineer configures a new S-Series switch. When the network engineer reloads the switch, the running configuration is defaulted.
What is the most likely cause of the default running configuration?

Question28:
Refer to the exhibit.
A customer plans to deploy a two-tier OSPF ECMP Core in the configuration shown. All uplinks to the spine are 40Gbps. All uplinks to the leaves are 10Gbps.
What should be the oversubscription rate for the spine?

Question29: A network engineer needs to apply Layer 2 port security on an existing N-Series switch. The customer wants to prevent end-users from plugging in their personal laptop in a LAN port at their desk. The company has confirmed that they want to hardset the security to ensure that security only applies to company- supplied computers. The customer has confirmed that computers will not be moving from desk to desk. A total of 10 systems are currently connected. The customer has stated that all switchports must be configured as well. If any other device is plugged in, there will be no network connectivity.
Which additional information must be provided to the engineer to meet the deployment guidelines?

Question30: A network engineer is configuring several trunk ports for VLAN 50 and VLAN 100 on an N-Series switch.
VLAN 50 and 100 are newly added VLANs. These are the only VLANs needed for the ports being configured.
Which configuration is correct?
A:

B:

C:

D:

Question31: Which component is required to deploy the N2000/N3000 Series switches in a stack configuration?

Question32: A network engineer removes a new Dell Networking N-Series switch from the original shipping container and initially configures STP on the switch. While the engineer is working on another task, another individual modifies the VLAN 1 STP priority to 61440, and has saved to the startup configuration.
Which command should be issued to return the switch to the default STP priority value for VLAN 1?

Question33: When facing the front of a C-Series switch, in which direction does air flow?

Question34:
Refer to the exhibit.
A network engineer is installing a new Dell S-Series switch on the rack and notices that the Power LED is blinking yellow. What is causing this behavior on the switch?

Question35: A network engineer needs to create an IEEE 802.3ad Port-Channel between two S-Series switches using ports Tengigabit Ethernet 0/1 to Tengigabit Ethernet 0/4.
Which commands should be used to create the required port-channel?
A:

B:

C:

D:

Question36: A new switch is already configured with an IP address and is reachable within the network. SSH and HTTPS are verified. The network engineer needs to disable HTTP for switch management.
What is the correct command?

Question37: A network engineer is doing software updates on a C9010 chassis and Port Extenders. The engineer updates the Operating System and boot flash images. Some PoE ports are NOT working. The engineer needs to complete the following updates so that all PoE ports work.
- PoE Controller
- FPGA
- CPLD
In which order should the engineer complete the updates so that all PoE ports work?

Question38:
Refer to the exhibit.
Considering the network topology and information shown, what is an issue with end point devices in network 192.168.102.0/24 that try to route to 192.168.101.0/24?

Question39: A network engineer needs to remove switch 2 from a stack of four switches permanently.
Which process should the network engineer use?
A: Adjust the stacking cables to take the N-Series switch out of the stack, log into the CLI of the stack, and run the following command:

B: Adjust the stacking cables to take the switch out of the stack. The master switch will automatically remove the switch from the stack.
C: Adjust the stacking cables to take the switch out of the stack, log into the CLI of the stack, and run the following command:

D: Adjust the stacking cables to take the switch out of the stack, and reboot the stack.

Question40: An N-Series stack has been implemented. The network engineer needs to verify that all switches in the stack are running the same firmware.
Which command should be used to verify stack status?

Question41:

Refer to the exhibits.
A network engineer has worked with PC support to install a new PC. After correctly configuring the PC's interfaces with valid IP addresses, the PC is not able to ping other devices on the 192.168.13.0/24 network.
The output from the PC after executing the command ipconfig /all is below:
The network engineer executes the command show mac address-tableon the N-series switch to which the PC is connected.
The output of the show mac address-tablecommand is below.
What are two reasons that the PC is unable to ping other devices? (Choose two.)

Question42: Which two commands are required to configure OSPFv2 on N-Series? (Choose two.)

Question43:
Refer to the exhibit.
The deployment engineer needs to use rapid PVST+ so that some traffic is forwarding on all inter-switch links on these three N-Series Switches. To do so, each switch has been set to the lowest spanning-tree priority value for one of the VLANs.
Given the labeled diagram shown, what Spanning-Tree Priority is Switch B advertising for VLAN 20?

Question44:
Refer to the exhibit.
Given the output from an N-Series switch shown, how many instances of VRF are running?

Question45: A network engineer needs to install five Dell N-Series switches in a stack for a company that is moving to a new building.
The following items are received:
- 5x Dell N4032 switches
- 5x Power cords
- 5x QSFP+ module card
- 120 CAT6 patch cords
- 1x UPS APC 7000
What needs to be provided to enable the network engineer to complete this task?

Question46: The network engineer has two Dell Networking switches: an N-Series and an S-Series. Both switches have the factory default configuration. Which phrase correctly describes the current state of spanning-tree on both switches?

Question47: Which three components can be used to deploy 10GbE N-Series switches in a user-port stack configuration? (Choose three.)

Question48: In an OSPF network, what happens if the OSPF Priority level is set to "0"?

Question49:

Refer to the exhibits of the S-Series switch.
A networking engineer is unable to pass traffic across interface port 13 and 43 for Dell1 and Dell2 S-Series switches, respectively.
Based on the exhibit, what is the problem with the configuration for the switches?

Question50: Which three properties are required for two OSPF router interfaces to establish a neighbor relationship?
(Choose three.)

Question51:

Refer to the exhibits.
A networking engineer is unable to ping from VLAN 30 across two S-Series switches. Port 13 on switch Dell1 and Port 43 on switch Dell2 both have a link status of up.
Why does the ping fail between the two switches?