Question 1

Two host bits are borrowed if four subnets are to be created.True or False?

Accepted Answer

Two host bits are required to create four subnets as it follows the formula 2^n = number of subnets, where n is the number of borrowed bits. In this case, 2^2 = 4, so two host bits are required to create four subnets.

Question 2

ICANN is the Internet Corporation for Assigned Names and Numbers and coordinates port number assignments.True or False?

Accepted Answer

This statement is true. ICANN is responsible for allocating and coordinating the use of domain names and IP addresses on the internet, as well as managing the global domain name system (DNS). However, coordinating port number assignments falls under the jurisdiction of the Internet Assigned Numbers Authority (IANA), which is a department of ICANN.

Question 3

The three packets exchanged between two hosts when establishing a TCP connection in the correct order are Syn,Ack,Syn + Ack.True or False?

Accepted Answer

The correct order is SYN, SYN+ACK, ACK.

Question 4

What is/are the port number(s)used by NetBIOS?&#10;A)137 through 139&#10;B)110&#10;C)143&#10;D)25

Accepted Answer

NetBIOS uses port numbers 137 through 139.

Question 5

The User Data Protocol (UDP)is used to speed up data transfers.True or False?

Accepted Answer

UDP is used for faster data transfer, but it sacrifices reliability for speed. It does not ensure that all packets are received or in the correct order. TCP is a slower protocol, but it provides reliable transmission with error-checking and packet retransmission.

Question 6

A CIDR block is no longer used since the development of IPv6.True or False?

Accepted Answer

CIDR blocks are still used in IPv4 addressing to allocate and manage IP addresses. IPv6 uses a different addressing system that does not require CIDR.

Question 7

You have enabled IPv6 on two of your routers,but on the interfaces you have not assigned IPv6 addresses yet.You are surprised to learn that these two machines are exchanging information over those interfaces.How is this possible?

A)Due to the link-local IPv6 addresses
B)Due to anycast addressing
C)Due to ICMPv6
D)Due to the NATv6 capability

Accepted Answer

Link-local IPv6 addresses are automatically assigned to interfaces when IPv6 is enabled. These addresses are used for communication between devices on the same link or network segment, even if global addresses have not been assigned yet. Therefore, it is possible for the routers to exchange information using link-local addresses without the need for global addresses to be assigned to the interfaces.

Question 8

Which of the following is not a valid type of unicast address in IPv6?&#10;A)Global&#10;B)Unique&#10;C)Link-local&#10;D)Anycast

Accepted Answer

Anycast address is a valid type of unicast address in IPv6, so D is not the correct answer. Global, Unique, and Link-local are all valid types of unicast addresses in IPv6.

Question 9

Two network bits are borrowed to create a network with four subnets.True or False?

Accepted Answer

The answer of Two network bits are borrowed to create...

Question 10

A host computer is assigned the IP address 192.168.12.8 and a subnet mask of 255.255.255.192.The host sends a packet to another host with a IP address of 192.168.12.65.The destination IP address is in the same subnet as 192.168.12.8.True or False?

Accepted Answer

With a subnet mask of 255.255.255.192 (/26), the network is divided into 4 subnets, each with 62 usable IP addresses. The IP 192.168.12.8 falls into the first subnet (192.168.12.0 - 192.168.12.63), while 192.168.12.65 is in the second subnet (192.168.12.64 - 192.168.12.127), making them in different subnets.

Question 11

What protocol does RTP rely on?&#10;A)UDP&#10;B)TCP&#10;C)ICMP&#10;D)OSPF

Accepted Answer

The answer of What protocol does RTP rely on?&#10;A)UDP&#10;B)TCP&#10;C)ICMP&#10;D)OSPF...

Question 12

What protocol uses port 2427?&#10;A)RTP&#10;B)SIP&#10;C)RDP&#10;D)MGCP

Accepted Answer

The answer of What protocol uses port 2427?&#10;A)RTP&#10;B)SIP&#10;C)RDP&#10;D)MGCP...

Question 13

The grouping of two or more class networks together is called a CIDR block.True or False?

Accepted Answer

The answer of The grouping of two or more class...

Question 14

What protocol relies upon ports 5060 and 5061?&#10;A)RDP&#10;B)MGCP&#10;C)SIP&#10;D)RTP

Accepted Answer

The answer of What protocol relies upon ports 5060 and...

Question 15

Your host has automatically received an IPv6 address working in conjunction with its local router that is not configured for DHCP.What technology is at work here?&#10;A)ICMPv6&#10;B)SLAAC&#10;C)Stateless DHCP&#10;D)Stateful DHCP

Accepted Answer

The answer of Your host has automatically received an IPv6...

Deck 6: TCP-IP