CCNA 1 Module 2 V3.1 Answers

1. What is the term used to describe the transport layer protocol data unit?

bits

packets

segments

frames

data streams

 

2. Refer to the following list. Choose the correct order of data encapsulation when a device sends information.

     1. segments

     2. bits

     3. packets

     4. data

     5. frames

1 - 3 - 5 - 4 - 2

2 - 1 - 3 - 5 - 4

2 - 4 - 3 - 5 - 1

4 - 3 - 1 - 2 - 5

4 - 1 - 3 - 5 - 2

3 - 5 - 1 - 2 – 4

 

3. Which two features apply to WAN connections? (Choose two.)

operate using serial interfaces

make network connection using a hub

limited to operation over small geographic areas

typically operate under local administrative control

provide lower bandwidth services compared to LANs

 

4. Which best describes the function of the physical layer?

Defines the electrical and functional specifications for the link between end systems.

Provides reliable transit of data across a physical link.

Provides connectivity and path selection between two end systems.

Concerned with physical addressing, network topology and media access.

 

5. What is one advantage of defining network communication by the seven layers of the OSI model?

It increases the bandwidth of a network.

It makes networking easier to learn and understand.

It eliminates many protocol restrictions.

It increases the throughput of a network.

It reduces the need for testing network connectivity.

 

6. A switch has failed in the network. As a result, only one segment of the network is down. Which type of physical network topology is implemented?

bus

ring

star

extended star

 

7. Which of the following are factors that determine throughput? (Choose two.)

types of passwords used on servers

type of Layer 3 protocol used

network topology

width of the network cable

number of users on the network

 

8. Which term describes the process of adding headers to data as it moves down OSI layers?

division

encoding

separation

segmentation

encapsulation

 

9. Which three features apply to LAN connections? (Choose three.)

operate using serial interfaces

make network connection using a hub

limited to operation over small geographic areas

provide part-time connectivity to remote services

typically operate under local administrative control

provide lower bandwidth services compared to WANs

 

10. Which of the following are data link layer encapsulation details? (Choose two.)

A header and trailer are added.

Data is converted into packets.

Packets are packaged into frames.

Frames are divided into segments.

Packets are changed into bits for Internet travel.

 

11. Which layer of the OSI model provides connectivity and path selection between two end systems where routing occurs?

physical layer

data link layer

network layer

transport layer

 

12. What makes it easier for different networking vendors to design software and hardware that will interoperate?

OSI model

proprietary designs

IP addressing scheme

standard logical topologies

standard physical topologies

 

13. The central hub has malfunctioned in the network. As a result, the entire network is down. Which type of physical network topology is implemented?

bus

star

ring

mesh

 

14. Which of the following are layers of the TCP/IP model? (Choose three.)

Application

Physical

Internet

Network Access

Presentation

 

15.

Refer to the exhibit. Identify the devices labeled A, B, C, and D in the network physical documentation.

A=bridge, B=switch, C=router, D=hub

A=bridge, B=hub, C=router, D=switch

A=bridge, B=router, C=hub, D=switch

A=hub, B=bridge, C=router, D=switch

 

16.

Refer to the exhibit. Which column shows the correct sequence of OSI model layers?

A

B

C

D

 

17. Which layer of the OSI model provides network services to processes in electronic mail and file transfer programs?

data link

transport

network

application

 

18. Which of the following are ways that bandwidth is commonly measured? (Choose three.)

GHzps

kbps

Mbps

Nbps

MHzps

Gbps