Question 1

What is the function of DNS, and at which layer does it operate?

Accepted Answer

DNS allows computers to contact other computers using a familiar name instead of a hard-to-remember IP address. DNS keeps records of which name corresponds to which IP address in a DNS cache so that a frequently accessed address can be resolved quickly. DNS is an Application layer protocol.

Question 2

DNS is a protocol that automatically provides a computer with its IP address configuration.

Accepted Answer

A) True 
 B)False  False

Question 3

Explain how Tracert uses an ICMP packet and the TTL value to map the path to an IP address.

Accepted Answer

tracert sends an ICMP to the IP address with a ttL value of 1. When the first router receives the packet it decrements the ttL to 0, discards the packet, and sends a ttL-expired packet to the sending computer. When the sending computer receives the ttL-expired packet, it notes the address of the first router. then it sends a second packet with a ttL of 2. this time the packet gets to the second router, is discarded, and the second router sends a ttL-expired packet. When tracert receives this response, it notes the address of the second router. this continues until the packet reaches the intended IP address.

Question 4

The four layers of the TCP/IP protocol suite are Application, ____________, Internetwork, and Network Access.

Accepted Answer

The answer of The four layers of the TCP/IP protocol...

Question 5

What are four tasks or responsibilities of the Internetwork layer?

Accepted Answer

It is responsible for routing packets th

Question 6

The Transport layer uses port numbers to identify the source and destination Application-layer protocol of the data that it contains.

Accepted Answer

A) True 
 B)False

Question 7

IPX/SPX is considered the protocol suite of the Internet, and it is the most widely used protocol suite in LANs.

Accepted Answer

A) True 
 B)False

Question 8

How many host addresses are available on a Class C network?

Accepted Answer

A)  254 
B)  256 
C)  65534 
D)  65536 
A)  254 
B)  256 
C)  65534 
D)  65536

Question 9

How does TCP provide flow control and reliability?

Accepted Answer

tCP sets a maximum number of bytes to tr

Question 10

How many bits are available in an IPv6 network for creating subnets when the prefix is /48 and the host ID is 64 bits?

Accepted Answer

A)  48 
B)  16 
C)  32 
D)  64 
A)  48 
B)  16 
C)  32 
D)  64

Question 11

___________ is a way of breaking a large address space into more, smaller, address spaces.

Accepted Answer

The answer of ___________ is a way of breaking a...

Question 12

The Transport layer deals with which unit of information?

Accepted Answer

A)  frame 
B)  packet 
C)  signal 
D)  segment 
A)  frame 
B)  packet 
C)  signal 
D)  segment

Question 13

A range of addresses is reserved for private addressing in each class. What are those ranges?

Accepted Answer

for Class A, all addresses beg

Question 14

Briefly describe an IP address.

Accepted Answer

An IP address is a 32-bit number divided

Question 15

Which of the following is a feature of TCP? (Choose all that apply.)

Accepted Answer

A)  segments data into chunks 
B)  converts signals into bits 
C)  provides data-formatting services 
D)  ensures flow control 
E)  establishes a connection 
A)  segments data into chunks 
B)  converts signals into bits 
C)  provides data-formatting services 
D)  ensures flow control 
E)  establishes a connection

Question 16

Which of the following is not a function of the Network Access layer?

Accepted Answer

A)  transmits and receives bit signals 
B)  delivers packets efficiently 
C)  provides a MAC address for the network interface 
D)  receives packets form the Internetwork layer and creates the frame 
A)  transmits and receives bit signals 
B)  delivers packets efficiently 
C)  provides a MAC address for the network interface 
D)  receives packets form the Internetwork layer and creates the frame

Question 17

____________are sets of rules and procedures that dictate communication and behavior.

Accepted Answer

The answer of ____________are sets of rules and procedures that...

Question 18

What is the decimal equivalent to the binary number 11000001?

Accepted Answer

A)  97 
B)  160 
C)  161 
D)  193 
A)  97 
B)  160 
C)  161 
D)  193

Question 19

What is the decimal equivalent to the hexadecimal number D?

Accepted Answer

A)  13 
B)  15 
C)  12 
D)  10 
A)  13 
B)  15 
C)  12 
D)  10

Question 20

What is the hexadecimal number F equal to in binary?

Accepted Answer

A)  0011 
B)  1011 
C)  1001 
D)  1111 
A)  0011 
B)  1011 
C)  1001 
D)  1111

What is the function of DNS, and at which layer does it operate?

DNS is a protocol that automatically provides a computer with its IP address configuration.

Explain how Tracert uses an ICMP packet and the TTL value to map the path to an IP address.

The four layers of the TCP/IP protocol suite are Application, ____________, Internetwork, and Network Access.

What are four tasks or responsibilities of the Internetwork layer?

The Transport layer uses port numbers to identify the source and destination Application-layer protocol of the data that it contains.

IPX/SPX is considered the protocol suite of the Internet, and it is the most widely used protocol suite in LANs.

How many host addresses are available on a Class C network?

How does TCP provide flow control and reliability?

How many bits are available in an IPv6 network for creating subnets when the prefix is /48 and the host ID is 64 bits?

___________ is a way of breaking a large address space into more, smaller, address spaces.

The Transport layer deals with which unit of information?

A range of addresses is reserved for private addressing in each class. What are those ranges?

Briefly describe an IP address.

Which of the following is a feature of TCP? (Choose all that apply.)

Which of the following is not a function of the Network Access layer?

____________are sets of rules and procedures that dictate communication and behavior.

What is the decimal equivalent to the binary number 11000001?

What is the decimal equivalent to the hexadecimal number D?

What is the hexadecimal number F equal to in binary?

Introduction to Computer Networks

Network Hardware Essentials

Network Topologies and Technologies

Network Media

Network Reference Models and Standards

Network Hardware in Depth

Network Operating System Fundamentals

Server Management and Administration

Introduction to Network Security

Supporting a Small Business Network

Wide Area Network Essentials

Troubleshooting and Support

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Exam 5: Network Protocols

What is the function of DNS, and at which layer does it operate?

DNS is a protocol that automatically provides a computer with its IP address configuration.

Explain how Tracert uses an ICMP packet and the TTL value to map the path to an IP address.

The four layers of the TCP/IP protocol suite are Application, ____________, Internetwork, and Network Access.

What are four tasks or responsibilities of the Internetwork layer?

The Transport layer uses port numbers to identify the source and destination Application-layer protocol of the data that it contains.

IPX/SPX is considered the protocol suite of the Internet, and it is the most widely used protocol suite in LANs.

How many host addresses are available on a Class C network?

How does TCP provide flow control and reliability?

How many bits are available in an IPv6 network for creating subnets when the prefix is /48 and the host ID is 64 bits?

___________ is a way of breaking a large address space into more, smaller, address spaces.

The Transport layer deals with which unit of information?

A range of addresses is reserved for private addressing in each class. What are those ranges?

Briefly describe an IP address.

Which of the following is a feature of TCP? (Choose all that apply.)

Which of the following is not a function of the Network Access layer?

____________are sets of rules and procedures that dictate communication and behavior.

What is the decimal equivalent to the binary number 11000001?

What is the decimal equivalent to the hexadecimal number D?

What is the hexadecimal number F equal to in binary?

Introduction to Computer Networks

Network Hardware Essentials

Network Topologies and Technologies

Network Media

Network Reference Models and Standards

Network Hardware in Depth

Network Operating System Fundamentals

Server Management and Administration

Introduction to Network Security

Supporting a Small Business Network

Wide Area Network Essentials

Troubleshooting and Support

Filters