Download New Updated (Spring 2015) Cisco 640-911 Actual Tests 1-10

By | April 27, 2015

Ensurepass

QUESTION 1

Which two networking devices operate at Layer 1 of the OSI model? (Choose two.)

 

A.

Repeater

B.

Bridge

C.

Switch

D.

Router

E.

Hub

 

Correct Answer: AE

Explanation:

It defines the electrical and physical specifications of the data connection. It defines the relationship between a device and a physical transmission medium (e.g. a copper or fiber optical cable). This includes the layout of pins, voltages, line impedance, cable specifications, signal timing, hubs, repeaters, network adapters, host bus adapters (HBA used in storage area networks) and more.”

http://en.wikipedia.org/wiki/OSI_model

 

 

QUESTION 2

Which two networking devices forward data based on destination MAC address? (Choose two.)

 

A.

Repeater

B.

Bridge

C.

Switch

D.

Router

E.

Hub

 

Correct Answer: BC

Explanation:

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/white_paper_c11- 465436.html

 

 

QUESTION 3

Which two network topologies are the most popular in switching? (Choose two.)

 

A.

Bus

B.

Token passing bus

C.

Star

D.

Extended star

E.

Ring

 

Correct Answer: CD

Explanation:

http://en.wikipedia.org/wiki/Network_topology

 

 

QUESTION 4

Which device would you select to partition a network into VLANs?

 

A.

repeater

B.

bridge

C.

switch

D.

router

E.

hub

 

Correct Answer: C

 

 

QUESTION 5

At which layer of the OSI model does TCP operate?

 

A.

1

B.

2

C.

3

D.

4

E.

5

 

Correct Answer: D

Explanation:

http://en.wikipedia.org/wiki/OSI_model

 

 

QUESTION 6

Which two layers of the OSI model relate to the transmission of bits over the wire and packet forwarding based on destination IP address? (Choose two.)

 

A.

1

B.

2

C.

3

D.

4

E.

5

 

Correct Answer: AC

Explanation:

Bits – 1 layer

Packets – 3 layer

http://en.wikipedia.org/wiki/OSI_model

 

 

QUESTION 7

Which layer of the OSI model is associated with the reliable transmission of datagrams?

 

A.

Datagram

B.

Routing

C.

Network

D.

Data link

E.

Transport

F.

Transmission

G.

Session

 

Correct Answer: E

Explanation:

http://en.wikipedia.org/wiki/Transport_layer

 

QUESTION 8

Which three terms are used to describe data at Layers 1, 2, and 4 of the OSI model? (Choose three.)

 

A.

PDUs

B.

Bits

C.

Sequences

D.

Segments

E.

Packets

F.

Frames

 

Correct Answer: BDF

Explanation:

Bits -1 layer

Frames – 2 layer

Segments – 4 layer

http://en.wikipedia.org/wiki/OSI_model

 

 

QUESTION 9

Which two layers of the OSI model are combined in the Internet protocol suite application layer? (Choose two.)

 

A.

2

B.

3

C.

4

D.

5

E.

6

F.

7

 

Correct Answer: DE

Explanation:

http://en.wikipedia.org/wiki/Internet_protocol_suite

 

 

QUESTION 10

Which two layers of the OSI model are combined in the Internet protocol suite network access layer? (Choose two.)

 

A.

1

B.

2

C.

3

D.

4

E.

5

F.

6

G.

7

 

Correct Answer: AB

Explanation:

http://en.wikipedia.org/wiki/Internet_protocol_suite

 

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