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What is the main purpose of an IP address in networking?
a. To create documents
b. To access websites directly
c. To identify devices on the Internet
d. To store user preferences
Answer: c. To identify devices on the Internettestbook+1
Which one of the following is not a correct IPv4 address?
a. 201.54.122.107
b. 102.45.221.710
c. 102.45.201.22
d. 250.234.123.124
Answer: b. 102.45.221.710testbook
How many bits are there in a standard IPv4 address?
a. 16
b. 32
c. 64
d. 128
Answer: b. 32sanfoundry+1
Which protocol translates IP addresses to physical MAC addresses?
a. DNS
b. ARP
c. ICMP
d. DHCP
Answer: b. ARPgdcramban
Which class of IP addresses is reserved for multicast?
a. Class A
b. Class B
c. Class C
d. Class D
Answer: d. Class Dscribd+1
What is the network mask for a Class C IPv4 address?
a. 255.0.0.0
b. 255.255.0.0
c. 255.255.255.0
d. 255.255.255.128
Answer: c. 255.255.255.0sanfoundry+1
Which protocol is used for obtaining an IP address automatically?
a. DNS
b. DHCP
c. ICMP
d. SNMP
Answer: b. DHCPscribd+1
What is the range of APIPA (Automatic Private IP Addressing)?
a. 10.0.0.1 to 10.255.255.254
b. 172.16.0.1 to 172.31.255.254
c. 192.168.0.1 to 192.168.255.254
d. 169.254.0.1 to 169.254.255.254
Answer: d. 169.254.0.1 to 169.254.255.254scribd
Which part of an IP address identifies the specific device on a network?
a. Network ID
b. Host ID
c. Subnet ID
d. Broadcast ID
Answer: b. Host IDgdcramban+1
What does a subnet mask define?
a. The class of the IP address
b. The network and host portions of an IP address
c. The default gateway
d. The speed of the network
Answer: b. The network and host portions of an IP addresstestbook+1
What is the minimum header size of an IP packet?
a. 16 bytes
b. 10 bytes
c. 20 bytes
d. 32 bytes
Answer: c. 20 bytesscribd
Which device is responsible for forwarding packets between networks based on IP addresses?
a. Switch
b. Router
c. Hub
d. Bridge
Answer: b. Routergdcramban+1
IPv6 has how many bits in its address format?
a. 32
b. 48
c. 64
d. 128
Answer: d. 128reck+1
In a subnetted Class B network with 7 bits borrowed for subnetting, how many hosts per subnet are possible?
a. 254
b. 126
c. 510
d. 1022
Answer: c. 510testbook
Which IPv6 address type is equivalent to a public IPv4 address?
a. Multicast
b. Loopback
c. Anycast
d. Global unicast
Answer: d. Global unicastreck
What is the primary function of the ICMP protocol in IP networks?
a. Provides error reporting and diagnostics
b. Resolves hostnames to IP addresses
c. Translates MAC addresses
d. Assigns addresses dynamically
Answer: a. Provides error reporting and diagnosticsgdcramban
Which of the following is not a valid form of IP address allocation supported by DHCP?
a. Automatic allocation
b. Static allocation
c. Dynamic allocation
d. Manual allocation
Answer: b. Static allocationgdcramban
Which field is used by routers to limit the lifetime of a packet in IPv4?
a. Source Address
b. Destination Address
c. TTL
d. Checksum
Answer: c. TTLsanfoundry+1
Which type of address allows communication to all hosts in a network segment?
a. Unicast
b. Multicast
c. Broadcast
d. Anycast
Answer: c. Broadcastscribd+1
What is the address range of Class A IP addresses?
a. 0.0.0.0 to 127.255.255.255
b. 128.0.0.0 to 191.255.255.255
c. 192.0.0.0 to 223.255.255.255
d. 224.0.0.0 to 239.255.255.255
Answer: a. 0.0.0.0 to 127.255.255.255networkhope+2
How many bits are used for the host portion in a Class C IPv4 address?
a. 8
b. 16
c. 24
d. 32
Answer: a. 8sanfoundry+1
What is the loopback address in IPv4?
a. 0.0.0.0
b. 127.0.0.1
c. 192.168.1.1
d. 255.255.255.255
Answer: b. 127.0.0.1scribd+1
Which protocol is primarily responsible for IP address to hostname resolution?
a. ARP
b. ICMP
c. DNS
d. DHCP
Answer: c. DNSscribd+1
Which class of IP address is used for experimental purposes?
a. Class A
b. Class B
c. Class D
d. Class E
Answer: d. Class Etestbook+1
What do we call the unique identifier assigned to every device on a network at Layer 3?
a. MAC address
b. IP address
c. VLAN ID
d. Port number
Answer: b. IP addresstestbook+1
Which of the following is responsible for IP routing table maintenance?
a. Bridge
b. Switch
c. Router
d. Hub
Answer: c. Routergdcramban
Which command is used in Windows OS to view the current IP configuration?
a. netstat
b. tracert
c. nslookup
d. ipconfig
Answer: d. ipconfigsanfoundry+1
Which is the highest value for any octet in an IPv4 address?
a. 128
b. 255
c. 1024
d. 254
Answer: b. 255sanfoundry+1
Which of the following is NOT a private IP address?
a. 10.0.0.5
b. 172.16.0.5
c. 192.168.1.5
d. 8.8.8.8
Answer: d. 8.8.8.8scribd+1
What is the default mask for Class B IP addresses?
a. 255.0.0.0
b. 255.255.0.0
c. 255.255.255.0
d. 255.255.255.128
Answer: b. 255.255.0.0sanfoundry+1
IPv4 provides how many unique addresses?
a. 4.3 million
b. 65536
c. 4.3 billion
d. 2^128
Answer: c. 4.3 billionsanfoundry+1
The DHCP Discover message is sent to which IP address?
a. 192.168.0.1
b. 255.255.255.255
c. 0.0.0.0
d. 127.0.0.1
Answer: b. 255.255.255.255scribd
IPv6 addresses are written in groups of how many hexadecimal digits?
a. 2
b. 4
c. 8
d. 16
Answer: b. 4reck
Which entry in a routing table matches all IP addresses?
a. Host route
b. Default route
c. Network route
d. Static route
Answer: b. Default routegdcramban
What is the primary difference between public and private IP addresses?
a. Private IP is routable over the Internet
b. Public IP is only reserved for LANs
c. Public IP is globally unique while private IP is used within local networks
d. Both are the same
Answer: c. Public IP is globally unique while private IP is used within local networksscribd+1
In CIDR notation, 192.168.1.0/24 means how many addresses are in the subnet?
a. 128
b. 256
c. 512
d. 1024
Answer: b. 256geeksforgeeks+1
What does NAT stand for?
a. Network Address Translation
b. Network Association Transmission
c. Network Allocation Table
d. None of the above
Answer: a. Network Address Translationscribd+1
Which protocol informs a host that its IP address on a network is already in use?
a. ICMP
b. ARP
c. DHCP
d. IP
Answer: a. ICMPgdcramban
What is the decimal equivalent of the subnet mask /27?
a. 255.255.255.0
b. 255.255.255.128
c. 255.255.255.224
d. 255.255.255.240
Answer: c. 255.255.255.224geeksforgeeks+1
The unique local address in IPv6 is analogous to which type of IPv4 address?
a. Private IP address
b. Public IP address
c. Loopback address
d. Multicast address
Answer: a. Private IP addressreck
What is the bit length of the network ID in a default Class A IP address?
a. 8
b. 16
c. 24
d. 32
Answer: a. 8networkhope+2
Which address does a device use to talk to itself?
a. Broadcast address
b. Loopback address
c. APIPA address
d. Default gateway
Answer: b. Loopback addresstestbook+2
Which type of broadcast is not allowed in IPv6?
a. Link-local
b. Global
c. Directed
d. Any broadcast
Answer: d. Any broadcastreck
Which of the following protocols is connectionless?
a. TCP
b. FTP
c. UDP
d. SMTP
Answer: c. UDPgdcramban
Which tool is used to check the route taken by packets to a destination in Windows?
a. ipconfig
b. netstat
c. tracert
d. ping
Answer: c. tracertsanfoundry+1
What is the single address used by a device to communicate with many hosts?
a. Broadcast
b. Unicast
c. Anycast
d. Multicast
Answer: d. Multicasttestbook+1
In a TCP/IP network, who is responsible for fragmenting packets?
a. Switch
b. Router
c. Client
d. Server
Answer: b. Routerscribd+1
Which port number is used by DNS?
a. 20
b. 25
c. 53
d. 80
Answer: c. 53gdcramban
Which address is used as a default gateway?
a. Network address
b. Subnet broadcast address
c. Router’s interface address
d. Switch’s MAC address
Answer: c. Router’s interface addressgdcramban
What is the maximum number of hosts in a network with subnet mask 255.255.255.192?
a. 62
b. 126
c. 64
d. 254
Answer: a. 62geeksforgeeks+1

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