Network CH.1-6

A device operating at Layer 3 of the OSI model uses which of the following protocols to determine the path to a different network?

• A. STP

• B. RTP

• C. RIP

• D. NTP

A-11

When a client calls and describes a problem with a computer not being able to reach the Internet, in which of the following places of the OSI model would a technician begin troubleshooting?

• A. Transport layer

• B. Physical layer

• C. Network layer

• D. Session layer

A-28

A network technician is troubleshooting a network connection error, when pinging the default gateway no reply is received. The default gateway is found to be functioning properly but cannot connect to any workstations. At which of the following OSI layers could the problem exist? (Select TWO)

• A. Presentation

• D. Data link

• E. Application

• F. Physical

A-29

A network engineer is dispatched to an employee office to troubleshoot an issue with the employee’s laptop. The employee is unable to connect to local and remote resources. The network engineer flips the laptop’s wireless switch on to resolve the issue. At which of the following layers of the OSI model was the issue resolved?

• A. Layer 1

• B. Layer 2

• C. Layer 3

• E. Layer 7

Which of the following wireless connection types utilize MIMO on non-overlapping channels? (Choose two.)

• A. 802.11a

• B. 802.11ac

• E. 802.11n

• C. 802.11b

B-36

A network technician needs to connect two switches. The technician needs a link between them which is capable of handling 10gb. Which of the following media would be optimal for this application?

• A. CAT5e cable

• B. Coax cable

• C. Fiber Optic cable

• D. CAT6 cable

B-63

A network engineer needs to set up a topology that will not fail if there is an outage on a single piece of the topology. However, the computers need to wait to talk on the network to avoid congestions. Which of the following topologies would the engineer implement?

A. Star

B. Bus

C. Ring

D. Mesh

• A. Star

• B. Bus

• C. Ring

• D. Mesh

B-64

An engineer is reviewing the implementation requirements for an upcoming project. The basic requirements identified by the customer include the following:

– WLAN architecture supporting speeds in excess of 150 Mbps

– Clientless remote network access

– Port-based network access control.

Which of the following solution sets properly addresses all of the identified requirements?

• A. 802.11a, IPSec VPN, 802.1x

• B. 802.11ac, MPLS, 802.3

• C. 802.11b, PPTP, 802.1x

• E. 802.11n, SSL-VPN, 802.1x

B-91

A company has a network with three switches, each one with eight ports. The switch is connected to a router that has a hub with four computers plugged into one of its interfaces. How many broadcast domains are present in this company’s network

• A. 1

• B. 2

• C. 5

• D. 16

B-98

While troubleshooting a network outage, a technician finds a 100-meter fiber cable with a small service loop and suspects it might be the cause of the outage. Which of the following is MOST likely the issue?

• A. Maximum cable length exceeded

• B. Dirty connectors

• C. RF interference caused by impedance mismatch

• D. Bend radius exceeded