Lesson 4: Understanding Internet Protocol
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Questions and Answers
- 1.
What is the default subnet mask for a Class B network?
- A.
255.0.0.0
- B.
255.255.0.0
- C.
255.255.255.0
- D.
255.255.255.255
Correct Answer
B. 255.255.0.0Explanation
The IPv4 classification system is known as the classful network architecture and is broken down into five sections. Class B has a default subnet mask of 255.255.0.0.Rate this question:
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- 2.
You have a host with the address of 180.24.45.120. To what class would this be address be assigned?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
Class D
Correct Answer
B. Class BExplanation
The given IP address, 180.24.45.120, falls within the range of Class B addresses. In Class B, the first two octets represent the network portion, while the last two octets represent the host portion. Since the first octet is between 128 and 191, it indicates that it belongs to Class B. Therefore, the given address is assigned to Class B.Rate this question:
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- 3.
For IPv4, what class is used for multicasting?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
Class D
Correct Answer
D. Class DExplanation
Class D is used for multicasting in IPv4. In IPv4, the address space is divided into five classes: A, B, C, D, and E. Class D addresses range from 224.0.0.0 to 239.255.255.255 and are reserved for multicast addresses. Multicasting allows a single sender to send data to a group of receivers simultaneously. Class D addresses are used for applications such as video streaming, online gaming, and audio conferencing, where data needs to be sent to multiple recipients at the same time.Rate this question:
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- 4.
What is the maximum number of hosts you can use for each subnet that belongs to a class C address?
- A.
128
- B.
254
- C.
256
- D.
65,534
Correct Answer
B. 254Explanation
A class C has 8 bits left for hosts. Therefore, 2^8 is equal to 256. But since you cannot use all 0s (network address) and all 1s (broadcast address), a class C will only support up to 254 hosts.Rate this question:
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- 5.
What type of address is 202.23.2.255?
- A.
Multicast address
- B.
Broadcast address
- C.
Unicast address
- D.
Anycast address
Correct Answer
B. Broadcast addressExplanation
The broadcast address is used to communicate with all hosts on the network. It is defined as all host bits are 0 (0000 0000).Rate this question:
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- 6.
What type of address is used to send a single set of packets to multiple hosts?
- A.
Multicast address
- B.
Broadcast address
- C.
Unicast address
- D.
Anycast address
Correct Answer
A. Multicast addressExplanation
A multicast address is used to send a single set of packets to multiple hosts. Unlike a unicast address, which is used to send packets to a specific host, a multicast address allows for one-to-many communication. It is commonly used in applications such as video streaming or online gaming, where multiple recipients need to receive the same data simultaneously. The packets sent to a multicast address are only received by hosts that have joined the corresponding multicast group. This makes multicast more efficient than broadcast, which sends packets to all hosts on the network regardless of their interest in the data.Rate this question:
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- 7.
Which of the following is not a private address?
- A.
10.4.24.24
- B.
172.16.36.45
- C.
192.168.34.3
- D.
200.23.34.120
Correct Answer
D. 200.23.34.120Explanation
Private IP addresses are hidden from the Internet and any other networks. They are usually behind an IP proxy or firewall device. Several ranges of private IP addresses have been reserved by the IANA. Private address are 10.0.0.0 to 10.255.255.255, 172.16.0.0 to 172.16.255.255 and 172.31.255.255 and 192.168.0.0 to 192.168.255.255.Rate this question:
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- 8.
What type of address is 169.254.32.23?
- A.
APIPA
- B.
Multicast address
- C.
Anycast address
- D.
Broadcast address
Correct Answer
A. APIPAExplanation
Microsoft developed one type of private range for use on small peer-to-peer Windows networks. This private range, called Automatic Private IP Addressing (APIPA), uses a single Class B network number: 169.254.0.0.Rate this question:
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- 9.
You have a computer that cannot connect to a server. When you look at the IP configuration, the host has an address of 169.32.54.2. What is the problem?
- A.
The host cannot find a DHCP server.
- B.
The host is set to multicast.
- C.
The host is currently broadcasting.
- D.
The host cannot find a domain controller.
Correct Answer
A. The host cannot find a DHCP server.Explanation
The host cannot find a DHCP server because the IP address assigned to the host is in the range of 169.254.0.0 to 169.254.255.255, which is the Automatic Private IP Addressing (APIPA) range. This range is used when a host is unable to obtain an IP address from a DHCP server. Therefore, the host is unable to connect to the server due to the absence of a DHCP server.Rate this question:
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- 10.
What defines the nearest router for a host?
- A.
Subnet mask
- B.
Default gateway
- C.
DNS server
- D.
WINS server
Correct Answer
B. Default gatewayExplanation
The default gateway is the IP address of the router that connects a host to other networks. It is responsible for routing the network traffic between different networks. When a host wants to send data to a device on a different network, it checks the destination IP address against its own IP address and subnet mask. If the destination IP address belongs to a different network, the host forwards the data to the default gateway, which then routes it to the appropriate network. Therefore, the default gateway defines the nearest router for a host.Rate this question:
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- 11.
What server is used to translate host names to IP addresses?
- A.
DNS
- B.
WINS
- C.
HOSTS
- D.
DHCP
Correct Answer
A. DNSExplanation
DNS (Domain Name System) is the correct answer because it is the server used to translate host names to IP addresses. DNS is responsible for resolving human-readable domain names, such as www.example.com, into the corresponding IP addresses, which are numerical identifiers used by computers to communicate over the internet. DNS servers maintain a database of domain name and IP address mappings, allowing users to access websites and other network resources by simply typing in the domain name instead of the IP address.Rate this question:
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- 12.
What is used to remap private addresses to public addresses and back?
- A.
DNS
- B.
DHCP
- C.
WINS
- D.
NAT
Correct Answer
D. NATExplanation
Network address translation (NAT) is the process of modifying an IP address while it is in transit across a router, computer, or similar device. This is usually so one larger address space (private) can be remapped to another address space, or perhaps remapped to a single public IP address.Rate this question:
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- 13.
What do you call a smaller network that is part of a larger network?
- A.
Host
- B.
Broadcast domain
- C.
Cluster
- D.
Subnet
Correct Answer
D. SubnetExplanation
A subnet is a smaller network that is part of a larger network. It is created by dividing a larger network into smaller, more manageable networks. Each subnet has its own unique range of IP addresses and can be used to organize and manage network resources efficiently. Subnets help in reducing network congestion and improving security by isolating different sections of a network.Rate this question:
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- 14.
You have a subnet mask of 255.255.240.0. What would the CIDR notation be?
- A.
/16
- B.
/20
- C.
/24
- D.
/28
Correct Answer
B. /20Explanation
One example of CIDR would be the IP network number 192.168.0.0/16. The /16 means that the subnet mask has 16 masked bits (or 1s), making 255.255.0.0. Usually, that would be a default Class B subnet mask, but because we are using it with what used to be a Class C network number, the whole address becomes classless.Rate this question:
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- 15.
How many bits is an IPv6 address?
- A.
32
- B.
48
- C.
64
- D.
128
Correct Answer
D. 128Explanation
An IPv6 address is made up of 128 bits. This is a significant increase compared to the previous version, IPv4, which uses 32 bits. The increase in bits allows for a much larger number of unique addresses to be assigned, which is necessary due to the growing number of devices connected to the internet. The 128-bit address space provides a virtually unlimited number of unique addresses, ensuring the continued growth and expansion of the internet.Rate this question:
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- 16.
What type of address is 2001:4212:0000:34DB:0000:0000:0000:4231?
- A.
MAC address
- B.
IPv4
- C.
IPv6
- D.
Anycast address
Correct Answer
C. IPv6Explanation
IPv6 addresses are also hexadecimal in format and divided into eight groups of four numbers each, with each group separated by a colon.Rate this question:
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- 17.
A ________ address is assigned by a DHCP server.
Correct Answer
dynamic
Dynamic
DynamicExplanation
A dynamic address is assigned by a DHCP server. DHCP stands for Dynamic Host Configuration Protocol, which is a network protocol that automatically assigns IP addresses to devices on a network. When a device connects to the network, it sends a request to the DHCP server, which then assigns a dynamic IP address to that device. This dynamic IP address is temporary and can change each time the device connects to the network.Rate this question:
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Mar 21, 2023Quiz Edited by
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Aug 07, 2017Quiz Created by
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