classful ip addressing questions
Q.1 In IPV4 IP addressing Network Bit represent by
(a) 1
(b) 0
(c) 1 & 0
(d) None
Answer (A) 1 One’s Bit in the subnet mask used for the network portion of the IP address.
Q.2 In IPV4 IP addressing Host Bit represent by
(a) 1
(b) 0
(c) 1 & 0
(d) None
Answer (b) 0 Zero’s Bit in the subnet mask used for the Host portion of the IP address.
Q.3 How Many classes in IPV4 IP addressing?
(a) 5
(b) 3
(c) No Classes
(d) None of the above
Answer (b) 0 Zero’s Bit in the subnet mask used for the Host portion of the IP address.
Q.4 Which Class is Reserve for Experimental Purpose?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
(e) Class E
Answer (e) Class E
Q.5 Which Class is Reserve for Multicast Purpose?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
(e) Class E
Answer (d) Class D
Also Read:-Checksum MCQs
Q.6 Map The Following?
(a) Class A (p) Two Bit (10)
(b) Class B (q) Three Bit (110)
(c) Class C (r) Four Bit (1110)
(d) Class D (s) One Bit (0)
(e) Class E (t) Four Bit (1111)
Options Are
(i) a-p,b-q,c-r,d-s,e-t
(ii) a-r,b-q,c-p,d-s,e-t
(iii) a-s,b-p,c-q,d-r,e-t
(iv) a-q,b-q,c-r,d-s,e-p
Answer (iii) a-s,b-p,c-q,d-r,e-t
Explanation :-
Q.7 Which Class is have loop back address?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (a) Class A
Q.7 Which Class is have biggest Host Portion address?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (a) Class A
Q.8 Which Class is have lowest Host Portion address?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (c) Class C
Q.9 Which Class is have same Network and Host Portion address?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (b) Class B
Q.10 Which address preferred as loop back address?
(a) 127.0.0.1
(b) 128.0.0.0
(c) 0.0.0.0
(d) None
Answer (a) 127.0.0.1
Also Read:-Checksum MCQs
Explanation :-
Q.11 Which address preferred as Special IP address?
(a) 127.0.0.1
(b) 128.0.0.0
(c) 0.0.0.0
(d) None
Answer (c) 0.0.0.0
Q.12 Which address preferred as Limited Broadcast IP address?
(a) 255.255.255.255
(b) 128.0.255.255
(c) 10.38.102.255
(d) None
Answer (a) 255.255.255.255
Q.13 What are the uses of Loop Back address.?
(a) Testing Network Applications,Setting Up Network Interfaces,security by blocking unwanted access from outside sources
(b) Developing Application and encrypt them
(c) Test the Whole internet applications
(d) None
Answer (a) Testing Network Applications,Setting Up Network Interfaces,security by blocking unwanted access from outside sources
Q.14 Which address given to group of host?
(a) Multicast
(b) Unicast
(c) Both
(d) None
Answer (a) Multicast
Q.15 Map The Following?
(a) Class A (p) 8 Bit Network and 24 bit Host Portion
(b) Class B (q) 24 Bit Network and 8 bit Host Portion
(c) Class C (r) 16 Bit Network and 16 bit Host Portion
(d) Class D (s) Not Define
(e) Class E (t) Not Define
Options Are
(i) a-p,b-q,c-r,d-s,e-t
(ii) a-r,b-q,c-p,d-s,e-t
(iii) a-q,b-r,c-p,d-s,e-t
(iv) a-q,b-q,c-r,d-s,e-p
Answer (iii) a-q,b-r,c-p,d-s,e-t
Explanation :-
https://examhope.com/category/it/computer-network/network-layer/ip-addressing/classful-ip-addressing
Q.16 Which Class is have 16 bit Network Portion
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (b) Class B
Q.17 Which Class is have 8 bit Network Portion
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (a) Class A
Q.18 Which Class is have lowest Network Portion address?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (a) Class A
Q.19 Which Class have 126 Host?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (a) Class A
Q.20 Which Class have class mask 255.255.255.0 ?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (c) Class C
Q.21 Which Class have class mask 255.255.0.0 ?
(a) Class A
(b) Class B
(c) Class C
(d) Class D
Answer (b) Class B
Q.22 Map The Following?
(a) Class A (p) 128-191
(b) Class B (q) 0-127
(c) Class C (r) 192-223
(d) Class D (s) 223-240
(e) Class E (t) 240-255
Options Are
(i) a-p,b-q,c-r,d-s,e-t
(ii) a-r,b-q,c-r,d-s,e-t
(iii) a-p,b-p,c-r,d-s,e-t
(iv) a-q,b-q,c-r,d-s,e-p
Answer (iii) a-q,b-p,c-r,d-s,e-t
Explanation :-
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