Question 1

NAT enhances security by ________.

Accepted Answer

A)  preventing sniffers from learning internal IP addresses 
B)  encryption 
C)  both A and B 
D)  neither A nor B 
A)  preventing sniffers from learning internal IP addresses 
B)  encryption 
C)  both A and B 
D)  neither A nor B

Question 2

In tunnel mode,ESP fields surround an IPv4 packet's ________.

Accepted Answer

A)  entire length 
B)  header 
C)  data field 
D)  none of the above 
A)  entire length 
B)  header 
C)  data field 
D)  none of the above

Question 3

NAT ________.

Accepted Answer

A)  allows a firm to have more internal IP addresses 
B)  provides some security 
C)  both A and B 
D)  neither A nor B 
A)  allows a firm to have more internal IP addresses 
B)  provides some security 
C)  both A and B 
D)  neither A nor B

Question 4

ICMP is used for ________.

Accepted Answer

A)  error messages 
B)  configuration messages 
C)  routing messages 
D)  none of the above 
A)  error messages 
B)  configuration messages 
C)  routing messages 
D)  none of the above

Question 5

What field in an IPv6 global unicast address corresponds to the subnet part of an IPv4 address?

Accepted Answer

A)  global routing prefix 
B)  subnet ID 
C)  interface ID 
D)  none of the above 
A)  global routing prefix 
B)  subnet ID 
C)  interface ID 
D)  none of the above

Question 6

Your firm has a 22-bit network part.What subnet part would you select to give at least 10 subnets?

Accepted Answer

A)  2 bits 
B)  3 bits 
C)  4 bits 
D)  none of the above 
A)  2 bits 
B)  3 bits 
C)  4 bits 
D)  none of the above

Question 7

In IP subnet planning,you need to have at least 130 subnets.How large should your subnet part be?

Accepted Answer

A)  6 
B)  7 
C)  8 
D)  none of the above 
A)  6 
B)  7 
C)  8 
D)  none of the above

Question 8

Ping is for ________ messages.

Accepted Answer

A)  error advisory 
B)  supervisory 
C)  both A and B 
A)  error advisory 
B)  supervisory 
C)  both A and B

Question 9

Which is a type of top-level domain?

Accepted Answer

A)  generic TLD 
B)  specific TLD 
C)  both A and B 
D)  neither A nor B 
A)  generic TLD 
B)  specific TLD 
C)  both A and B 
D)  neither A nor B

Question 10

If your subnet part is 8 bits long,you can have ________ subnets.

Accepted Answer

A)  64 
B)  128 
C)  256 
D)  254 
A)  64 
B)  128 
C)  256 
D)  254

Question 11

Which has stronger security?

Accepted Answer

A)  SSL/TLS 
B)  IPsec 
C)  Both have about equal security. 
A)  SSL/TLS 
B)  IPsec 
C)  Both have about equal security.

Question 12

An advantage of using DHCP to configure clients is that ________.

Accepted Answer

A)  the configuration information will be up-to-date 
B)  the configuration will be done securely 
C)  both A and B 
D)  neither A nor B 
A)  the configuration information will be up-to-date 
B)  the configuration will be done securely 
C)  both A and B 
D)  neither A nor B

Question 13

Which protects more of the original IP packet?

Accepted Answer

A)  transport mode 
B)  tunnel mode 
C)  Both provide the same protection to the IP packet. 
A)  transport mode 
B)  tunnel mode 
C)  Both provide the same protection to the IP packet.

Question 14

Corporations wish to have ________ domain names.

Accepted Answer

A)  top-level 
B)  second-level 
C)  third-level 
D)  none of the above 
A)  top-level 
B)  second-level 
C)  third-level 
D)  none of the above

Question 15

Which of the following is more widely used?

Accepted Answer

A)  ESP 
B)  AH 
C)  Both are about equally widely used. 
A)  ESP 
B)  AH 
C)  Both are about equally widely used.

Question 16

Pinging is to send ICMP ________ messages to the target host.

Accepted Answer

A)  echo request 
B)  error advisement 
C)  ping 
D)  echo 
A)  echo request 
B)  error advisement 
C)  ping 
D)  echo

Question 17

A DHCP server provides a client with ________.

Accepted Answer

A)  one or more IP addresses for it to use 
B)  the IP address of one or more DNS servers 
C)  both A and B 
D)  neither A nor B 
A)  one or more IP addresses for it to use 
B)  the IP address of one or more DNS servers 
C)  both A and B 
D)  neither A nor B

Question 18

You have a 20-bit network part and a 4-bit subnet part.How many hosts can you have per subnet?

Accepted Answer

A)  15 
B)  16 
C)  254 
D)  none of the above 
A)  15 
B)  16 
C)  254 
D)  none of the above

Question 19

NAT ________.

Accepted Answer

A)  allows a firm to have more internal IP addresses 
B)  reduces cost 
C)  both A and B 
D)  neither A nor B 
A)  allows a firm to have more internal IP addresses 
B)  reduces cost 
C)  both A and B 
D)  neither A nor B

Question 20

Which is NOT one of the three parts of a public IPv6 unicast address?

Accepted Answer

A)  subnet ID 
B)  routing prefix 
C)  host part 
D)  All of the above are parts in a public IPv6 unicast address. 
A)  subnet ID 
B)  routing prefix 
C)  host part 
D)  All of the above are parts in a public IPv6 unicast address.

NAT enhances security by ________.

In tunnel mode,ESP fields surround an IPv4 packet's ________.

NAT ________.

ICMP is used for ________.

What field in an IPv6 global unicast address corresponds to the subnet part of an IPv4 address?

Your firm has a 22-bit network part.What subnet part would you select to give at least 10 subnets?

In IP subnet planning,you need to have at least 130 subnets.How large should your subnet part be?

Ping is for ________ messages.

Which is a type of top-level domain?

If your subnet part is 8 bits long,you can have ________ subnets.

Which has stronger security?

An advantage of using DHCP to configure clients is that ________.

Which protects more of the original IP packet?

Corporations wish to have ________ domain names.

Which of the following is more widely used?

Pinging is to send ICMP ________ messages to the target host.

A DHCP server provides a client with ________.

You have a 20-bit network part and a 4-bit subnet part.How many hosts can you have per subnet?

NAT ________.

Which is NOT one of the three parts of a public IPv6 unicast address?

Core Network Concepts and Terminology

Network Standards

Network Management

Network Security

Ethernet 802.3switched Lans

Wireless Lans I

Wireless Lans II

TCP/IP Internetworking I

Carrier Wide Area Networks Wans

Networked Applications

Appendix: Managing the Security Process

Filters

Exam 9: TCP/IP Internetworking II

NAT enhances security by ________.

In tunnel mode,ESP fields surround an IPv4 packet's ________.

NAT ________.

ICMP is used for ________.

What field in an IPv6 global unicast address corresponds to the subnet part of an IPv4 address?

Your firm has a 22-bit network part.What subnet part would you select to give at least 10 subnets?

In IP subnet planning,you need to have at least 130 subnets.How large should your subnet part be?

Ping is for ________ messages.

Which is a type of top-level domain?

If your subnet part is 8 bits long,you can have ________ subnets.

Which has stronger security?

An advantage of using DHCP to configure clients is that ________.

Which protects more of the original IP packet?

Corporations wish to have ________ domain names.

Which of the following is more widely used?

Pinging is to send ICMP ________ messages to the target host.

A DHCP server provides a client with ________.

You have a 20-bit network part and a 4-bit subnet part.How many hosts can you have per subnet?

NAT ________.

Which is NOT one of the three parts of a public IPv6 unicast address?

Core Network Concepts and Terminology

Network Standards

Network Management

Network Security

Ethernet 802.3switched Lans

Wireless Lans I

Wireless Lans II

TCP/IP Internetworking I

Carrier Wide Area Networks Wans

Networked Applications

Appendix: Managing the Security Process

Filters