Bản in của bài viết

1.

What device is used to connect hosts to an Ethernet LAN and requires a straight-through UTP cable between the hosts and this device?
	NIC
	router
	switch
	server

2.

Users with systems that are attached to a hub are complaining about poor response time. What device could replace the hub and provide immediate response time improvement?
	router
	switch
	bridge
	repeater

3.

Refer to the exhibit. How many collision domains exist in the network?
	1
	2
	4
	7
	8

4.

At which layer of the OSI model does the MAC address of a NIC reside?
	physical
	application
	network
	transport
	data link
	session

5.

Which statement describes a typical use of Gigabit Ethernet?
	to provide high-speed desktop connectivity for average users
	to provide connectivity to low to medium volume applications
	to provide medium volume connectivity to workgroup servers
	to provide high-speed connectivity for backbones and cross connects

6.

Refer to the exhibit. A technician measured the lengths of the CAT 5e structured cable runs in the exhibit. How should the technician evaluate the cabling shown in the diagram to the network administrator? All cabling to work areas are within specifications. Station A and B may experience intermittent problems because the length exceeds the recommended standard. Station B may experience intermittent problems because the length exceeds the recommended standard. Station C may experience intermittent network connectivity because the length is less than the recommended standard. Station A and B will have intermittent problems because the length exceeds the recommended standard. Station C will not have network connectivity because the length is less than the recommended standard.

7.

What is the most common type of cabling used in LANs?
	STP
	UTP
	coax
	fiber

8.

In which situations would a crossover cable be used to connect devices in a network? (Choose two.)
	switch to PC
	switch to hub
	switch to router
	switch to server
	switch to switch

9.

Refer to the exhibit. What is the appropriate cable to use at each of the numbered network connections? 1-crossover; 2-straight-through; 3-crossover; 4-straight-through 1-straight-through; 2-crossover; 3-straight-through; 4-straight-through 1-straight-through; 2-crossover; 3-crossover; 4-straight-through 1-rollover; 2-crossover; 3-straight-through; 4-straight-through 1-rollover; 2-straight-through; 3-straight-through; 4-straight-through

10.

The ends of a UTP cable are shown in the exhibit. Which cable configuration is shown? crossover rollover reversed-pair straight-through split-pair console

11.

The ends of a UTP cable are shown in the exhibit. Which cable configuration is shown?
	console
	crossover
	rollover
	reversed-pair
	split-pair
	straight-through

12.

Which two devices are considered OSI Layer 1 devices? (Choose two.)
	hubs
	routers
	bridges
	switches
	repeaters

13.

Which statement is accurate about a WAN link? The link transmits data serially. The link uses a maximum distance of 100 meters. The link uses the same transmission rate as all other WAN links use. The link uses the same standardized connector style that is used for all WAN technologies.

14.

Which items in the exhibit are DTE devices? A and B B and C C and D A and D A, B, C, and D

15.

Which function is a unique responsibility of the DCE devices shown in the exhibit?
	transmission of data
	reception of data
	clocking for the synchronous link
	noise cancellation in transmitted data

16.

What type of cable would be used to make the connection between the console port of a router and a workstation?
	crossover
	rollover
	straight-through
	patch

17.

What is characteristic of how a hub operates?
	A hub selectively drops packets that represent potential security risks.
	A hub forwards data out all interfaces except the inbound interface.
	A hub dynamically learns the interfaces to which all devices are attached.
	At start up, a hub queries the devices on all interfaces in order to learn the MAC addresses of the attached devices.
	A hub transmits a frame to a specific interface based on the destination MAC address.

18.

Which of the following are benefits of peer-to-peer networks? (Choose three.) centralized security easy to create very scalable no centralized equipment required centralized administrator not required centralized control of assets

19.

Which address does a bridge use to make filtering and switching decisions?
	source MAC
	source IP
	destination MAC
	destination IP
	network IP address

20.

Which of the following are benefits of a wireless network? (Choose two.)
	higher data speeds
	better security
	mobility
	less expensive NIC cards
	no need to run cables to hosts