Exam 100-105 topic 1 question 112 discussion

Actual exam question from Cisco's 100-105

Question #: 112
Topic #: 1

Refer to the exhibit.

The junior network support staff provided the diagram as a recommended configuration for the first phase of a four-phase network expansion project. The entire network expansion will have over 1000 users on 14 network segments and has been allocated this IP address space.
✑ 192.168.1.1 through 192.168.5.255
✑ 192.168.100.1 through 192.168.100.255
What are three problems with this design? (Choose three.)

A. The AREA 1 IP address space is inadequate for the number of users.
B. The AREA 3 IP address space is inadequate for the number of users.
C. AREA 2 could use a mask of /25 to conserve IP address space.
D. The network address space that is provided requires a single network-wide mask.
E. The router-to-router connection is wasting address space.
F. The broadcast domain in AREA 1 is too large for IP to function.

Show Suggested Answer

Suggested Answer: ACE 🗳️
The given IP addresses of areas 1 and 3 along with network masks of 24 cannot accommodate 500 users so are inadequate, while the area 2 is having over capacity so its network mask can be reduced to 25 to accommodate the only 60 users it has.

by icdaniel at Dec. 9, 2019, 10:20 a.m.