Topic 1, Volume A
Network address: 200.12.30.0
Network mask: 255.255.255.0
Use the information above. You need to create 12 subnetworks supporting 10 host addresses
each.
Which extended prefix will meet this requirement?
A.
/12
B.
/24
C.
/26
D.
/28
E.
/30
/28
Given the associated prefix value, which of the following is a valid host address?
A.
172.16.224.255/18
B.
255.255.255.255/32
C.
224.1.2.1/8
D.
192.168.24.59/30
172.16.224.255/18
A network administrator is creating a subnet plan for the address 172.16.0.0/16. The network must
support 459 hosts on each subnet while providing the maximum number of subnets. What subnet
mask should be used?
A.
255.255.0.0
B.
255.255.128.0
C.
255.255.224.0
D.
255.255.254.0
255.255.254.0
With a subnet mask of 255.255.255.224, which of the IP addresses below are valid host
addresses? (Choose all that apply)
A.
17.23.119.63
B.
87.99.12.159
C.
95.11.22.93
D.
192.11.25.87
95.11.22.93
192.11.25.87
Given a network address of 116.14.0.0, which of the following is a valid host address when using
the subnet mask 255.255.255.240?
A.
116.14.17.16
B.
116.14.17.31
C.
116.14.17.192
D.
116.14.17.189
116.14.17.189
Given the following (Network address: 208.40.224.0, Network prefix: /28.) What is the address
range, including the network and broadcast addresses, for the fourth sub-network?
A.
208.40.224.0 208.40.224.255
B.
208.40.4.0 208.40.4.255
C.
208.40.224.16 208.40.224.31
D.
208.40.224.48 208.40.224.63
E.
208.40.227.0 - 208.40.224.255
208.40.224.48 208.40.224.63
Which of the following is a characteristic of a subnet created with a /31 prefix?
A.
There is no broadcast address on the network.
B.
The address can only be used as a loopback address.
C.
This specifies a single host address.
D.
A /31 prefix is not supported on the SR and ESS platform.
There is no broadcast address on the network.
Which of the following is a characteristic of the system address?
A.
A physical interface address.
B.
A logical address on the router not corresponding to any specific interface.
C.
May have any prefix value.
D.
A management IP address.
A logical address on the router not corresponding to any specific interface.
Address summarization reduces the routing table size by:
A.
Allowing a contiguous block of network addresses to be represented by one network prefix.
B.
Increasing the number of addresses in the routing table.
C.
Summarizing addresses in the network intosmaller routing tables.
D.
Not advertising directly connected routes
Allowing a contiguous block of network addresses to be represented by one network prefix.
What is the preference value in the routing table used for?
A.
It indicates the preferred egress interface.
B.
It differentiates between multiple routes to a destination learned by the same protocol.
C.
It differentiates between multiple routes to a destination learned by different routing protocols.
D.
It is used to differentiate local routes from remote routes.
It differentiates between multiple routes to a destination learned by different routing protocols.
At what stage in the packet forwarding process, is the IP packet header examined?
A.
When the router first receives a frame from a LAN.
B.
After the forwarding table is checked.
C.
After the IP datagram is extracted from the L2 frame.
D.
Immediately before the IP packet is encapsulated for transmission.
After the IP datagram is extracted from the L2 frame.
What happens next after an incoming packet is de-encapsulated from the Layer 2 frame in an
Alcatel-Lucent 7750 router?
A.
The IP datagram is encapsulated in the appropriate Layer 2 frame bythe MDA.
B.
The IP datagram passes through the switch fabric to reach the egress IOM.
C.
The IP datagram is passed to the IOM.
D.
A lookup is performed in the FIB to determine the egress interface.
The IP datagram is passed to the IOM.
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