What does a hub allow?

Connecting multiple computers to form a LAN segment

Extending a LAN branch by amplifying the signal it receives

Preventing broadcast packets from passing through

If computer A and computer Z are on different subnets, what happens when A broadcasts an ARP request to find Z's MAC address?

The router forwards the ARP request to Z's subnet, and Z responds

The router replies with Z's MAC address

The router replies with its own MAC address

What happens when computer A broadcasts an ARP request to find computer B's MAC address on the same network?

All computers on the network receive the ARP request, but only B responds with its MAC address

The DNS server responds to A with B's MAC address

All computers on the network receive the ARP request and respond to A with B's MAC address

The nearest router responds to A with B's MAC address or forwards the request to another router

Which service must the Data Link layer provide?

Encapsulating network-layer packets into frames

Encoding bits into physical signals

Providing a reliable transmission path

Suppose a parity bit is added to the end of a transmitted data stream to ensure the total number of 1-bits in the new stream is odd. If the receiver gets the stream 1000101010001, then:

The received stream contains errors

Errors in the bitstream can be detected and corrected

Errors in the received stream cannot be determined

Which statement about switches is most accurate?

Uses physical addresses and operates at the Data Link layer of the OSI model

Uses physical addresses and operates at the Physical layer of the OSI model

Uses physical addresses and operates at the Network layer of the OSI model

Uses IP addresses and operates at the Network layer of the OSI model

What happens to data during a collision in the transmission process?

The hub/switch resends the data

The data is restored at the receiver

Which service must the Data Link layer provide?

Providing a reliable transmission path

Encapsulating network-layer packets into frames

Encoding bits into physical signals

Which definition of a MAC address is correct?

It is preassigned on the network interface card (NIC)

It is declared by the network administrator

What is the function of a proxy?

Acts as a representative for a group of devices to perform a client service

Serves as a device for network traffic statistics

PART 6: DATA LINK LAYER AND PHYSICAL LAYER

Quiz

•

Information Technology (IT)

•

University

•

Practice Problem

•

Hard

FREE Resource

45 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A frame is the data unit at which layer?

Physical

Network

Data Link

Transport

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Error control and flow control are performed by:

Network layer

Data Link layer

Physical layer

Session layer

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which protocol is used to convert an IP address to a physical (MAC) address?

ARP

RARP

ICMP

TCP

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The process for a host to automatically obtain an IP address from a server when connecting to a network is:

The host broadcasts a "DHCP discover" message → The DHCP server responds with "DHCP offer" → The host sends a "DHCP request" → The DHCP server sends "DHCP ack."

The host sends a "DHCP request" → The DHCP server sends "DHCP ack" → The host broadcasts a "DHCP discover" message → The DHCP server responds with "DHCP offer."

The host broadcasts a "DHCP discover" → The DHCP server sends "DHCP ack" → The host sends a "DHCP request" → The DHCP server responds with "DHCP offer."

The host sends a "DHCP request" → The DHCP server responds with "DHCP offer" → The host broadcasts a "DHCP discover" → The DHCP server sends "DHCP ack."

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

CSMA/CD is a random access method used for networks with which topology?

Star (STAR)

Bus

Ring

Hybrid BUS-STAR

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

CSMA/CD stands for:

Collision Sense Multiple Access/Collision Detection

Carrier Sense Multiple Access/Collision Deterrence

Carrier Sense Multiple Access/Collision Detection

Collision Sense Multiple Access/Carrier Detection

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The first three bytes of a MAC address provide information about:

The manufacturer of the network card (NIC)

The geographical region of the network card

The version number of the network card

None of the above

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PART 6: DATA LINK LAYER AND PHYSICAL LAYER

45 questions

A frame is the data unit at which layer?

Error control and flow control are performed by:

Which protocol is used to convert an IP address to a physical (MAC) address?

The process for a host to automatically obtain an IP address from a server when connecting to a network is:

CSMA/CD is a random access method used for networks with which topology?

CSMA/CD stands for:

The first three bytes of a MAC address provide information about:

Which network device connects networks and controls broadcasts?

Which of the following is a layer 2 address (MAC address)?

CSMA/CD is which type of access mechanism?

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