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WorksheetsCN-First Test
Total questions: 25
Worksheet time: 22mins
An Internet Service Provider(ISP) has the following chunk of CIDR-based IP addresses available with it:245.248.128.0/20. The ISP wants to give half of this chunk of addreses to Organization A, and a quarter to Organization B, while retaining the remaining with itself. Which of the following is a valid allocation of addresses to A and B?
245.248.136.0/21 and 245.248.128.0/22
245.248.128.0/21 and 245.248.128.0/22
245.248.132.0/22 and 245.248.132.0/21
245.248.136.0/22 and 245.248.132.0/21
Which of the following is not true about Subnetting?
It can be applied only for single network.
It is used to improve security.
Here, bits are borrowed from network ID portion.
Here, bits are borrowed from host ID portion.
What is the network ID of the IP address 225.100.123.70?
225.100.123.71
225.100.123.72
225.100.123.75
It does not has any network ID
How many bits are allocated for network id (NID) and host id(HID) in the IP address 25.193.155.233?
24 bit for NID, 8 bits for HID
8 bit for NID, 24 bits for HID
16 bit for NID, 16 bits for HID
none
Consider Subnet mask of class B network on the internet is 255.255.240.0 then, what is the maximum number of hosts per subnets?
4098
4096
4094
4092
The address of a class B host is to be split into subnets with a 6-bit subnet number. What is the maximum number of subnets and the maximum number of hosts in each subnet?
62 subnets and 262142 hosts.
64 subnets and 262142 hosts.
62 subnets and 1022 hosts.
64 subnets and 1024 hosts.
If a class B network on the Internet has a subnet mask of 255.255.248.0, what is the maximum number of hosts per subnet?
1022
1023
2047
2046
An organization has a class B network and wishes to form subnets for 64 departments. The subnet mask would be:
255.255.252.0
255.255.128.0
255.255.64.0
255.255.0.0
Suppose computers A and B have IP addresses 10.105.1.113 and 10.105.1.91 respectively and they both use the same netmask N. Which of the values of N given below should not be used if A and B should belong to the same network?
255.255.255.0
255.255.255.128
255.255.255.192
255.255.255.224
Which of the following below is a loopback IP address?
127.0.0.0
127.0.0.1
127.0.1.1
127.0.1.0
What is the size of an IPv4 IP address?
32 bit
64 bit
128 bit
16 bit
MAC addresses are also known as?
Hardware address
both a and d
IP address
Physical address
10Base5, 10Base2, 10BaseT are types of?
Ethernet
LAN
Internet
Cables
IPv6 has _______ -bit IP addresses.
128
64
Variable
32
Which of the following can be an Ethernet physical address?
01:02:01:2C:4B
07:01:02:01:2C:4B:2C
07:01:02:01:2C:4B
none of the above
How many IP addresses can be assigned to hosts in a C-class network segment with a subnet mask of 255.255.255.192?
62
126
192
254
Which of the followings is not a direct implication of subnet masks in TCP/IP networks?
Reduce network traffic
Increase network security
Assignment of more IP addresses
Better network management
What is the default subnet mask for a class C network?
127.0.0.1
255.0.0.0
255.255.0.0
255.255.255.0
None of the above
What is the first octet range for a class C IP address?
192 - 255
192 - 223
192 - 226
128 - 191
1 - 126
You are working with a class C network. You are required to configure it for five subnets, each of which will support 25 nodes. What subnet should you use?
255.255.255.0
255.255.255.0
255.255.255.224
255.255.255.240
What is the port number for HTTP?
66
99
12
80
ICMP uses for
Error generation
Error reporting
Error calculation
Error masking
Protocol which is used to resolve MAC address from IP address is?
BOOTP
ARP
RARP
ICMP
RARP stands for:
Reverse Address Resolution Phase
Resolve Address Resolution Protocol
Reverse Address Recall Protocol
Reverse Address Resolution Protocol
Header size of IPV6 ptotocol
20 byte
40 byte
20-60 byte
40-60 byte
