- 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 sys
- Concerned with physical addressing, network topology and media access.
2 Refer to the exhibit. Which column shows the correct sequence of OSI model layers?
- A
- B
- C
- D*
3 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.
4 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*
5 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*+
6 Which layer of the OSI model provides network services to processes in electronic mail and file transfer programs?
- data link
- Transport*
- network
- Application+
7 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*
8 Which term describes the process of adding headers to data as it moves down OSI layers?
- division
- encoding
- separation
- Segmentation*
- Encapsulation+
9 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.
10 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
11 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
12 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
13 What is the term used to describe the transport layer protocol data unit?
- bits
- packets
- Segments+
- frames
- data streams*
14 Which of the following are ways that bandwidth is commonly measured? (Choose three.)
- GHzps
- Kbps*
- Mbps*
- Nbps
- MHzps
- Gbps *
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 Which of the following are layers of the TCP/IP model? (Choose three.)
- Application*
- Physical
- Internet*
- Network Access*
- Presentation
17 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
18 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+
19 In your opinion (this has no bearing on your grade), please rate your motivation to do well in this course:
- (1) Not At All Motivated
- (2) Slightly Motivated
- (3) Motivated
- (4) Very Motivated
- (5) Completely Motivated*
20 In your opinion (this has no bearing on your grade), please indicate how enthusiastic you are about the content of this course and the things you’re learning (or have learned):
- (1) Not At All Enthusiastic
- (2) Slightly Enthusiastic
- (3) Enthusiastic*
- (4) Very Enthusiastic
- (5) Completely Enthusiastic
21 In your opinion (this has no bearing on your grade), please indicate your interest in this course:
- (1) Not At All Interested
- (2) Slightly Interested
- (3) Interested
- (4) Very Interested*
- (5) Completely Interested
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