VLSM (Variable Length Subnet Mask)

1. Which of the following routing protocols support VLSM? (Choose three answers.)
a. RIP-1
b. RIP-2
c. EIGRP
d. OSPF

2. What does the acronym VLSM stand for?
a. Variable-length subnet mask
b. Very long subnet mask
c. Vociferous longitudinal subnet mask
d. Vector-length subnet mask
e. Vector loop subnet mask
3. R1 has configured interface Fa0/0 with the ip address 10.5.48.1 255.255.240.0 command.
Which of the following subnets, when configured on another interface on R1,
would not be considered an overlapping VLSM subnet?
a. 10.5.0.0 255.255.240.0
b. 10.4.0.0 255.254.0.0
c. 10.5.32.0 255.255.224.0
d. 10.5.0.0 255.255.128.0
4. R4 has a connected route for 172.16.8.0/22. Which of the following answers lists a subnet
that overlaps with this subnet?
a. 172.16.0.0/21
b. 172.16.6.0/23
c. 172.16.16.0/20
d. 172.16.11.0/25
5. A design already includes subnets 192.168.1.0/26, 192.168.1.128/30, and
192.168.1.160/29. Which of the following subnets is the numerically lowest subnet ID
that could be added to the design, if you wanted to add a subnet that uses a /28 mask?
a. 192.168.1.144/28
b. 192.168.1.112/28
c. 192.168.1.64/28
d. 192.168.1.80/28
e. 192.168.1.96/28