Deck 4: Ip Address Planning and Management

Question 1

Which statement describes the IPv6 standard?

A) Using a security protocol will become an option when IPv6 globally adopted.
B) Each packet's payload should be less than 50 KB.
C) IPv6 packets have a simpler header structure than IPv4 packets.
D) Unicasting, multicasting, and broadcasting are supported by IPv6.
E) SSL is a security protocol preferred by IPv6.

Answer 1

C

Question 2

255.255.255.255 is an IP address for

A) Multicasting
B) Anycasting
C) Limited broadcasting
D) Unicasting
E) Directed broadcasting

Answer 2

C

Question 3

What information is used to determine the subnet part of an IP address?

A) Default gateway
B) Subnet mask
C) Host name
D) Domain name
E) Network size

Answer 3

B

Question 4

"Localhost" is the domain name for which IP address?

A) 127.0.0.1
B) 192.168.1.1
C) 255.255.255.255
D) 224.1.2.3
E) 10.0.0.1

Question 5

The following nodes EXCEPT ______ require "preferred" configuration of at least one permanent (or static) IP:

A) Router
B) Firewall device
C) Smartphone
D) Server
E) Printer

Question 6

When an IP packet contains __________ as its destination, the packet will never leave the host computer?

A) 127.0.0.1
B) 192.168.1.1
C) 255.255.255.255
D) 224.1.2.3
E) 10.0.0.1

Question 7

The classful IP scheme differs from the classless IP scheme by _________.

A) using a fixed number of host address bits
B) using a fixed number of subnet address bits
C) using network addresses of 8 bit, 16 bit, and 24 bit blocks
D) using subnet addresses of 8 bit, 16 bit, and 24 bit blocks
E) using host addresses of 8 bit, 16 bit, and 24 bit blocks

Question 8

In general, which type of network nodes is programmed with temporary or dynamic (rather than permanent) IP addresses?

A) Resource (ex. web pages) providers
B) Resource consumers
C) Intermediary nodes
D) Security devices (ex. surveillance cameras)
E) Managed switches

Question 9

The Class C network of Classful IP uses ______ bits for the network ID.

A) 4
B) 8
C) 16
D) 24
E) 32

Question 10

I developed a server web site (with multiple web pages) for a small business client and want to test it offline (by hosting it inside my computer). What URL may be used to access the server pages from the browser?

A) http://127.0.0.1
B) http://192.168.1.1
C) http:// 255.255.255.255
D) http://192.168.1.255
E) http://10.255.255.255

Question 11

The many-to-one IP address mapping by a router is possible by keeping _______ in addition to the sender's and receiver's IP addresses in its mapping table.

A) subnet masks
B) port numbers
C) MAC addresses
D) exit interface (ex. s0/0/0)
E) sender's private address

Question 12

The term 'port address translation' is equivalent to ______ in its meaning.

A) Subnetting
B) Supernetting
C) Subnet masking
D) One-to-one IP mapping
E) Many-to-one IP mapping

Question 13

Which of the following is INCORRECT in describing network address translation?

A) NAT makes network design, management, and expansion flexible.
B) The router is a type of network device that the NAT function is implemented.
C) Only the sender's (source) IP address, not the receiver's address, should be translated when the packet goes out to the Internet.
D) One-to-one mapping is faster and more accurate than many-to-one mapping in IP conversion.
E) NAT shields internal computers and intermediary devices from casual snooping by outsiders.

Question 14

The term, classless inter-domain routing (CIDR), is synonymous to:

A) Subnetting
B) Supernetting
C) Subnet masking
D) Broadcasting within a subnet
E) Multicasting within a subnet

Question 15

With the CLASSFUL IP address of 200.45.42.33 and a subnet mask of 255.255.255.248, how many bits have been used to create a subnet?

A) 3
B) 4
C) 5
D) 13
E) 14

Question 16

Assigning a static or dynamic IP to a host requires additional configuration of the following items EXCEPT the

A) IP address
B) Subnet mask
C) Default gateway
D) IP address of a DNS server
E) IP address of an ISP router

Question 17

When 192.168.64.0/24, 192.168.128.0/24, and 192.168.192.0/24 are summarized to form a supernet, what can be its address?

A) 192.168.0.0/8
B) 192.168.0.0/16
C) 192.168.0.0/24
D) 192.168.192.0/8
E) 192.168.192.0/16

Question 18

Which is the IP address for limited broadcasting?

A) 255.255.224.0
B) 224.1.255.255
C) 10.1.255.255
D) 255.255.255.255
E) 192.168.1.255

Question 19

My computer is behaving somewhat erratic in accessing the network and I want to test if the TCP/IP protocol stack of the computer is working properly. What IP address may be used for the testing?

A) private address
B) loopback address
C) limited broadcasting address
D) multi-casting address
E) directed broadcasting address

Question 20

When a host broadcasts an IP packet using 255.255.255.255 destination address, that address should be translated into ________ MAC address in hex?

A) 1111.1111.1111
B) 0000.0000.0000
C) AAAA.AAAA.AAAA
D) 9999.9999.9999
E) FFFF.FFFF.FFFF

Question 21

Which CORRECTLY reflects the process of IP delegation to SDSU?

A) Regional Internet Registry $\rightarrow$ IANA $\rightarrow$ ISP $\rightarrow$ SDSU
B) IANA $\rightarrow$ Regional Internet Registry $\rightarrow$ ISP $\rightarrow$ SDSU
C) Regional Internet Registry $\rightarrow$ ISP $\rightarrow$ IANA $\rightarrow$ SDSU
D) IANA $\rightarrow$ ISP $\rightarrow$ Regional Internet Registry $\rightarrow$ SDSU
E) ISP $\rightarrow$ IANA $\rightarrow$ Regional Internet Registry $\rightarrow$ SDSU

Question 22

Assume a company with network IP address of 16 bits. Seven subnets should be created within a firm and the network administrator decided to borrow a minimal number of bits from the host part for the subnet creation. What is the subnet mask?

A) 255.255.224.0
B) 255.255.240.0
C) 255.255.0.0
D) 255.255.255.255
E) 255.255.255.192

Question 23

In the classful addressing scheme, when the first octet (number) of a network is 179, it is a ________ .

A) class A network
B) class B network
C) class C network
D) class D network
E) not enough information to decide

Question 24

Let's assume that a university network (130.191.0.0) uses a subnet mask 11111111.11111111.11111100.00000000 to assign a unique subnet to each college. How many college subnets can be created with the IP addressing scheme.

A) 4
B) 62
C) 30
D) 32
E) 64

Question 25

____ computers can have a permanent (or static) IP address in a classless network with the /24 prefix. Exclude all 1s and all 0s from the counting of host IPs.

A) 62
B) 254
C) 30
D) 256
E) 126

Question 26

What is the binary bit stream equivalent to the decimal value 191?

A) 11100000
B) 10111111
C) 11011011
D) 10011111
E) 11111110

Question 27

(Refer to the figure below) PC1 in Subnet 1 is sending a directed broadcasting message to all servers in Subnet 2. Then what is the IP packet's destination address?

A) 192.168.100.255
B) 192.255.255.255
C) 255.255.255.255
D) 192.168.255.255
E) 192.168.0.255

Question 28

The following measures should help in extending the IPv4's life expectancy EXCEPT:

A) Use of dynamic IP addresses using DHCP
B) Reliance on private IP addresses
C) Use of network address translation (NAT)
D) More reliance on switches than routers in networking
E) Switch from classful IP to the classless IP address scheme

Question 29

Which CORRECTLY describes the network address translation?

A) By utilizing private IP ranges for internal nodes, overall address space available to network administrators for allocation gets smaller.
B) If the internal network is on private IPs, current IP assignment to network nodes is more easily affected by such circumstantial changes as ISP changes.
C) The allocation of IP space to a particular subnet can be more generous expecting future business growth.
D) The packet forwarding performance of the border router is not affected by the usage of private IPs.
E) With the use of private IPs, deploying time-sensitive applications such as IP telephony and video streaming becomes easier.

Question 30

For the IP address, 192.168.1.51/11, what is its subnet address and subnet mask in decimal?

A) 192.0.0.0 255.224.0.0
B) 192.160.0.0 255.224.0.0
C) 192.0.0.0 255.0.0.0
D) 192.168.0.0 255.224.0.0
E) 192.168.0.0 255.255.0.0

Question 31

(Refer to the figure below) Which subnet address is INCORRECTLY assigned?

A) 192.168.20.0/24
B) 192.168.1.0/24
C) 10.1.0.0/16
D) 172.16.0.0/16
E) 182.182.0.0/16

Question 32

(Refer to the figure below) Which subnet address cannot be assigned?

A) 192.168.20.0/24
B) 192.168.1.0/24
C) 10.1.0.0/16
D) 192.168.10.0/24
E) 182.182.0.0/16

Question 33

(Refer to the figure below) Which port (interface) is NOT correctly configured? All addresses have the subnet mask of 255.255.255.0. Assume that there are no VLANs.

A) 192.168.11.254
B) 192.168.11.1
C) 192.168.9.254
D) 192.168.10.1
E) 192.168.1.254

Question 34

The following are descriptions of the IPv6 standard EXCEPT:

A) It uses 128 bit addressing that is equivalent to 32 hexadecimal digits.
B) It uses 64 bits to represent a subnet (or network) address and 64 bits for a host address.
C) If necessary, the IP address can be automatically derived from the host's MAC address.
D) A host computer has to be configured with either an IPv4 or an IPv6 address, but not both.
E) An IPv4 address can be converted to an IPv6 address.

Question 35

The following IPv6 addresses are equivalent EXCEPT:

A) 0089:A0CD:0234:0000:0000:0000:0D0B:0F20
B) 89:A0CD:234:0:0:0:D0B:F20
C) 89:A0CD:234::D0B:F20
D) 89:A0CD:234::::D0B:F20
E) They are all equivalent.

Question 36

We are in the transition from IPv4 to IPv6. Several approaches have been introduced to make the transition. The following demonstrates ______ technical solution.

A) Keeping dual IP stacks in a node
B) Direct address conversion
C) Packet tunneling
D) Virtual private network
E) Network address translation (NAT)

Question 37

If the following IPv6 address is reduced to the smallest: (AD89:00C0:0204:0000:0000:ABC0:000B:0000)

A) AD89:C0:204::ABC0:B:0
B) AD89:C0:204:0:0000:ABC0:000B:0
C) AD89:C0:204:0:0:ABC0:B:0
D) AD89:C0:204::ABC0:B::
E) AD89:C0:204:0:ABC0:000B::

Question 38

The following are descriptions of the IPv6 standard EXCEPT:

A) It uses 128 bit addressing that is equivalent to 32 hexadecimal digits.
B) It uses 64 bits to represent a subnet (or network) address and 64 bits for a host address.
C) If necessary, the IP address can be automatically derived from the host's MAC address.
D) A host computer has to be configured with either an IPv4 or an IPv6 address, but not both.
E) An IPv4 address can be converted to an IPv6 address.