Which layer of the OSI model provides network services to processes in electronic mail and file transfer programs?
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.
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
Which layer of the OSI model provides connectivity and path selection between two end systems where routing occurs?
data link layer
Which term describes the process of adding headers to data as it moves down OSI layers?
Refer to the following list. Choose the correct order of data encapsulation when a device sends information.
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
The central hub has malfunctioned in the network. As a result, the entire network is down. Which type of physical network topology is implemented?
Which of the following are factors that determine throughput? (Choose two.)
types of passwords used on servers
type of Layer 3 protocol used
width of the network cable
number of users on the network*
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.
Which of the following are ways that bandwidth is commonly measured? (Choose three.)
Which of the following are layers of the TCP/IP model? (Choose three.)
What is the term used to describe the transport layer protocol data unit?
What makes it easier for different networking vendors to design software and hardware that will interoperate?
IP addressing scheme
standard logical topologies
standard physical topologies
Refer to the exhibit. Which column shows the correct sequence of OSI model layers?
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.
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*
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?
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