Question

. What is the primary difference between UDP and TCP?

1. One is connection-oriented, one is connectionless
2. One uses checksums, one does not
3. One is used by a router, the other by a bridge
4. One is used by IP, the other is used by ICMP
5. They are identical

33. A router deals with which part of the IP address:

1. NIC
2. PORT
3. Host ID
4. Network ID

34. A hop in a TCP/IP network refers to:

1. Going through a bridge
2. Going through a router
3. Going through a NIC
4. Going through a web server

35. How many subnets (excluding all 0’s and all 1’s) can be uniquely identified with 4 bits?

1. 14
2. 28
3. 30
4. 64

36. How many subnets (excluding all 0’s and all 1’s) can be uniquely identified with 5 bits?

1. 28
2. 30
3. 31
4. 64

37. What is one of the main purposes of IP version 6 (IP Next Generation)?

1. Allows for more applications
2. Allows for more IP addresses
3. Allows for more Class C addresses
4. Creates a connection-oriented mode for IP

38. Address 205.169.85.0 is assigned by ICANN as a corporate IP address. Which of the following statements is true:

1. It is a class C address
2. It is a class B address
3. It is a class A address
4. It is a loopback address

Answer 1

32. What is the primary difference betwwn UDP and TCP
ans ----> a. One is connection-oriented and one is connectionless
       TCP is connection-oriented
       UDP is connectionless
      
33. A router deal with which part of the IP address.
ans ----> Network ID
A router is the point of contact betweent to networks.
so router identifies the network id.

34 A hop in a TCP/IP network refers to:
ans ----> Going through a router.

        Every time a packet passes through a router , its hop is
        increased by one.
       
35. How many subnets (excluding all 0’s and all 1’s) can be uniquely identified with 4 bits?

ans ----> 14

    total combinations using 4 bits = 2^4 = 16
    excluding two , we have 14.
      
      
       
36. How many subnets (excluding all 0’s and all 1’s) can be uniquely identified with 5 bits?

ans ----> 30

    total combinations using 5 bits = 2^5 = 32
    excluding two , we have 30.
      
      
      
37. What is one of the main purposes of IP version 6 (IP Next Generation?

ans ----> Allows for more IP addresses

       since IP Version 6 is 128 bit long . so it can be used to provide unique ip address to every single device in the world.
      
      
38. Address 205.169.85.0 is assigned by ICANN as a corporate IP address. Which of the following statements is true:

ans -----> It is a class C address

   class C address range is 192.0.0.0   to 223.255.255.255