Question

only answers no explanation

1. An IP address has a 16-bit network part and a subnet mask of 255.255.240.0. How many subnets can there be?

a. 16

b. 32

c. 64

d. 128

e. 256

2. Which of the following is NOT an advantage of VLANs?

a. VLANs improve network performance.

b. VLANs enhance network security.

c. VLANs improve network scalability.

d. VLANs conserve IP addresses.

3. “Wikileaks.org” is an example of a __________ domain name.

a. root-level .

b. top-level

c. second-level

d. third-level

4. In DNS, a group of resources under the control of an organization is called a(n) ________.

a. domain

b. scope

c. subnet

d. autonomous system

e. cloud

5. A switch learns a host’s location by recording an incoming frame’s ______________.

a. destination IP address

b. source IP address

c. destination MAC address

d. source MAC address

e. FCS (frame check sequence)

Answer 1

1. a --> 16

2. d --> VLANs conserve IP addresses.

3. c --> second-level

4. a --> domain

5. d --> source MAC address