1. (4) properly identify the following IPv4 addresses. a. 202.117.132.176/28 b.
ID: 3634204 • Letter: 1
Question
1. (4) properly identify the following IPv4 addresses.a. 202.117.132.176/28
b. 192.168.32.149/16
c. 153.258.33.129/26
d. 86.135.21.75/26
e. 127.0.0.1/8
f. 212.89.126.159/27
g. 0.0.0.0
h. 255.255.255.255
______ is a network address.
______ is a directed broadcast address.
______ is a limited broadcast address.
______ is a public host address.
______ is a private host address.
______ is an illegal address.
______ is a loopback address.
______ is a “this computer” address.
2. (3) Associate the following concepts in a correct manner.
a. Internet layer (Layer 3)
b. transport layer (Layer 4)
c. application layer (Layer 5)
d. assign IP address to host
e. resolve physical address of host
f. report error
A. ICMP is ______ protocol to ______.
B. DHCP is ______ protocol to ______.
C. ARP is ______ protocol to ______.
4. (3) Describe briefly three basic functions that an Internet router performs.
answer: ____________________________________________________________
answer: ____________________________________________________________
answer: ____________________________________________________________
5. (2) Give the names of two applications that use ICMP.
answer: ____________________________________________________________
answer: ____________________________________________________________
6. (1) If a client receives DHCP lease for 24 hours, when will it begin (by default) to renew the lease?
a. after 8 hours
b. after 12 hours
c. after 16 hours
d. after 24 hours answer: ______
7. (1) How many bits are there in an IPv4 address?
a. 16
b. 24
c. 32
d. 128 answer: ______
8. (1) What is the maximum size of an IPv4 datagram (in bytes) including header?
a. 4096
b. 1500
c. 1518
d. 65536 answer: ______
9. (1) What is the minimum size of an IPv4 header (in bytes)?
a. 5
b. 8
c. 20
d. 1500 answer: ______
10. (2) What is the timeout of fragments? Briefly explain.
answer: ____________________________________________________________
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________
11. (1) Suppose after timeout, one of the fragments for an IP datagram is not received by the
destination. What will the destination do then?
a. Ask the source to retransmit the missing fragment.
b. Discard all received fragments.
c. Assemble all received fragments into one IP datagram.
d. None of the above.
answer: ______
12. (1) An ARP request involves with only one physical network.
True or False? answer: ______
13. (1) When an error is detected during the transmission of an ICMP datagram, a new ICMP
datagram will be generated to report the error.
True or False? answer: ______
14. (1) What will a router do if it detects that the IP checksum is incorrect?
a. It corrects the error in IP header and forwards the datagram to the next hop.
b. It corrects the error in IP payload and forwards the datagram to the next hop.
c. It sends an ICMP message back to the sender.
d. It drops the datagram.
answer: ______
16. (1) To trace route, it is better to use the IP option of TRACEROUTE than the TTL mechanism.
Why? (Pick up all correct reasons.)
a. Only one request datagram is needed.
b. The path reported is exactly the path traversed by the datagram.
c. For the TRACEROUTE option, the router must respond. However for TTL, the router may choose not to respond.
d. The response to TRACEROUTE is a special ICMP message, which is guaranteed for its
reliable delivery to the source.
answer: __________________
17. (1) The router is responsible for reassembling fragments.
True or False? answer: ______
18. (2) What is the best-effort data transmission of IP? Give two characters.
answer: ____________________________________________________________
answer: ____________________________________________________________
I appreciate your help
Explanation / Answer
I bet no one is going to study your question, I suggest make it in parts
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