Network + 009

Ethan, a network technician, is examining a switch port configuration and notices that it supports traffic from several VLANs. Which of the following best describes this port's setup?

• Configured with a trunk VLAN

• Configured with a single VLAN

• Configured with a management VLAN

• Configured with a private VLAN

James, a network engineer, configures a new switch and connects it to an existing switch for expansion and redundancy. Users immediately lose connectivity to the network. James notes the following spanning tree information from both switches: Switch 1 Port State Cost 1 Forward 2 2 Forward 2 Switch 2 Port State Cost 1 Forward 2 2 Forward 2 Which of the following best describes the issue?

• The port cost should not be equal.

• The ports should use link aggregation.

• A root bridge needs to be identified.

• The switch should be configured for RSTP.

Avery's company was concerned about single points of failure, so they decided to add an additional WAN to their network. They added a second MPLS vendor to the current MPLS WAN and deployed an additional WAN router at each site. Both MPLS providers use OSPF on the WAN network, and EIGRP is run internally. The first site to go live with the new WAN was successful, but when the second site was activated, significant network issues occurred. Which of the following is the most likely cause for the WAN instability?

• A changed CDP neighbor

• Asymmetrical routing

• A switching loop

• An incorrect IP address

Liam, a network administrator, needs to ensure that only approved devices can access the network on a switch. What method can he use?

• Implement a firewall

• Activate port security

• Configure a VPN

• Enable DHCP snooping

Aria, a network administrator, is in the process of installing 35 PoE security cameras in a new office building. After Aria installed and tested the new cables, she installed the cameras. However, a small number of the cameras do not work. Which of the following is the most likely reason?

• Incorrect wiring standard

• Power budget exceeded

• Signal attenuation

• Wrong voltage

Mason is configuring a network for a company and needs to set up routing protocols. What is the default administrative distance value for EIGRP?

• 110

• 90

• 120

• 200

Scarlett is configuring a small office network and requires eight usable IP addresses. Which of the following subnet masks would be most suitable for this need?

• 255.255.255.128

• 255.255.255.192

• 255.255.255.224

• 255.255.255.240

Ava, a network administrator, needs to set up a secondary route for redundancy in case the main route becomes unavailable. The router does not have a dynamic routing protocol enabled. Which routing feature should Ava use to achieve this?

• Neighbor adjacency

• Link state flooding

• Administrative distance

• Hop count

Which type of fiber connector is commonly found on a network switch?

• LC

• SC

• ST

• MPO

After replacing damaged cables with newly crimped 26ft (8m) STP Cat 6 patch cables, users in a room are experiencing network connectivity issues. A network technician verifies that the 177ft (54m) cable from the core switch to the access switch is operational, as well as the 115ft (35m) cable from the access switch to the wall jack. What is the most probable cause of the connectivity problem?

• The patch cables are not shielded properly.

• The patch cables are not long enough.

• The patch cables are not terminated correctly.

• The patch cables are not color-coded.