200-401 Online Practice Questions and Answers

What is the purpose of Spanning Tree Protocol?

A. to prevent routing loops

B. to create a default route

C. to provide multiple gateways for hosts

D. to maintain a loop-free Layer 2 network topology

E. to enhance the functions of SNMP

Why is SSH preferred over Telnet as a method of accessing a network device to alter or view the configuration?

A. Telnet encrypts only the login information, not the entire transmission.

B. SSH requires fewer network resources and no additional configuration.

C. Telnet is more difficult to use and configure than SSH.

D. SSH encrypts the login and session information.

Exhibit:

Refer to the exhibit. C-router is to be used as a "router-on-a-stick" to route between the VLANs. All the interfaces have been properly configured and IP routing is operational. The hosts in the VLANs have been configured with the appropriate default gateway. What is true about this configuration?

A. These commands need to be added to the configuration:C-router(config)# router eigrp 123C- router (config-router)# network 172.19.0.0

B. These commands need to be added to the configuration:C-router(config)# router ospf 1C- router (config-router)# network 172.19.0.0 0.0.3.255 area 0

C. These commands need to be added to the configuration:C-router(config)# router ripC-router(config- router)# network 172.19.0.0

D. No further routing configuration is required.

What are two recommended tools or commands that allow you to troubleshoot connectivity between two devices in different IP networks? (Choose two.)

A. show interface status

B. show spanning-tree

C. ping

D. show interfaces gigabitEthernet x/y switchport

E. traceroute

F. show interface

What is the leading cause of fiber-optic link failure?

A. contaminants

B. crushed fiber

C. poor testing practices

D. bad connectors

At which Layer would you use trace route to validate the path?

A. Layer 1

B. Layer 2

C. Layer 3

D. Layer 4

What is a reason to use privileged EXEC mode on an industrial switch?

A. to verify commands that you have entered

B. to change terminal settings

C. to configure VLAN parameters

D. to configure parameters that apply to the entire switch

What is a characteristic of cables that are used in articulating equipment arms?

A. fiber-optic zip-cord construction

B. shielded copper twisted pair

C. high flex rated cable

D. type PLTC cable

Which parameter would you tune to affect the selection of a static route as a backup, when a dynamic protocol is also being used?

A. hop count

B. administrative distance

C. link bandwidth

D. link delay

E. link cost

How does the optical time domain reflectometer use "backscattered" light to make measurements?

A. It uses pulses to locate and test for sheath faults, damaged conductors, loose connectors, splices, bridge taps, split pairs, and other problems.

B. It performs wiremapping to measure that all pins are correctly connected.

C. It correlates the returned light pulses with a location in the fiber.

D. It measures light-pulse width to measure that all pins are correctly connected.