NWC204

How many host addresses are available on the 192.168.10.128/26 network?

• A. 30

• B. 32

• C. 60

• D. 62

• E. 64

What is the prefix length notation for the subnet mask 255.255.255.224?

• A. /28

• B. /27

• C. /26

• D. /25

What is the recommended prefix length for most IPv6 subnets?

• A. /32

• B. /48

• C. /64

• D. /128

How many usable IP addresses are available on the 192.168.1.0/27 network?

Number of usable IPs = 2^number of host bits - 2

• A. 254

• B. 30

• C. 256

• D. 16

• E. 62

How many host addresses are available on the network 172.16.128.0 with a subnet mask of 255.255.252.0?

• A. 510

• B. 512

• C. 1022

• D. 1024

• E. 2046

A network administrator has received the IPv6 prefix 2001:DB8::/48 for subnetting. Assuming the administrator does not subnet into the interface ID portion of the address space, how many subnets can the administrator create from the /48 prefix?

• A. 16

• B. 256

• C. 4096

• D. 65536

A PC is downloading a large file from a server. The TCP window is 1000 bytes. The server is sending the file using 100-byte segments. How many segments will the server send before it requires an acknowledgment from the PC?

• A. 1 segment

• B. 10 segments

• C. 100 segments

• D. 1000 segments

Host-A has the IPv4 address and subnet mask 10.11.12.100 255.255.255.0. What is the network address of Host-A?

Network Address = IP Address AND Subnet Mask

• A. 10.0.0.0

• B. 10.11.0.0

• C. 10.11.12.0

• D. 10.11.12.100

What is the special value assigned to the first 24 bits of a multicast MAC address transporting an IPv4 packet?

A. 01-00-5E

B. FF-00-5E

C. 01-5E-00

D. FF-FF-FF

• A. 01-00-5E

• B. FF-00-5E

• C. 01-5E-00

• D. FF-FF-FF

Which address is a valid IPv6 link-local unicast address?

• A. FEC8:1::FFFF

• B. FD80::1:1234

• C. FE80::1:4545:6578:ABC1

• D. FEOA::100:7788:998F

• E. FC90:5678:4251:FFFF