CCNA Cisco Certified Network Associate CCNA
(v3.0): 200-125 Exam Answer Part 1
1. Refer to the exhibit. What will Router1 do when it receives the data frame shown?
(Choose three.)
A. Router1 will strip off the source MAC address and replace it with the MAC address
0000.0c36.6965.
B. Router1 will strip off the source IP address and replace it with the IP address
192.168.40.1.
C. Router1 will strip off the destination MAC address and replace it with the MAC
address 0000.0c07.4320.
D. Router1 will strip off the destination IP address and replace it with the IP address of
192.168.40.1.
E. Router1 will forward the data packet out interface FastEthernet0/1.
F. Router1 will forward the data packet out interface FastEthernet0/2
2. Refer to the exhibit. Which three statements correctly describe Network Device A?
(Choose three.)
,A. With a network wide mask of 255.255.255.128, each interface does not require an IP
address.
B. With a network wide mask of 255.255.255.128, each interface does require an IP
address on a unique IP subnet.
C. With a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to
communicate with each other.
D. With a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to
communicate with each other.
E. With a network wide mask of 255.255.254.0, each interface does not require an IP
address.
3 .Which layer in the OSI reference model is responsible for determining the
availability of the receiving program and checking to see if enough resources exist
for that communication?
A. transport
B. network
C. presentation
D. session
E. application
4. Refer to the exhibit. Host A pings interface S0/0 on router 3. What is the TTL value
for that ping?
,A. 252
B. 253
C. 254
D. 255
Explanation/Reference:
From the CCNA ICND2 Exam book: "Routers decrement the TTL by 1 every time they
forward a packet; if a router decrements the TTL to 0, it throws away the packet. This
prevents packets from rotating forever." I want to make it clear that before the router
forwards a packet, the TTL is still remain the same. For example in the topology above,
pings to S0/1 and S0/0 of Router 2 have the same TTL.
5. Which of the following describes the roles of devices in a WAN? (Choose three.)
A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
, D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.
6. Refer to the exhibit. Refer to the exhibit. After HostA pings HostB, which entry will
be in the ARP cache of HostA to support this transmission?
(v3.0): 200-125 Exam Answer Part 1
1. Refer to the exhibit. What will Router1 do when it receives the data frame shown?
(Choose three.)
A. Router1 will strip off the source MAC address and replace it with the MAC address
0000.0c36.6965.
B. Router1 will strip off the source IP address and replace it with the IP address
192.168.40.1.
C. Router1 will strip off the destination MAC address and replace it with the MAC
address 0000.0c07.4320.
D. Router1 will strip off the destination IP address and replace it with the IP address of
192.168.40.1.
E. Router1 will forward the data packet out interface FastEthernet0/1.
F. Router1 will forward the data packet out interface FastEthernet0/2
2. Refer to the exhibit. Which three statements correctly describe Network Device A?
(Choose three.)
,A. With a network wide mask of 255.255.255.128, each interface does not require an IP
address.
B. With a network wide mask of 255.255.255.128, each interface does require an IP
address on a unique IP subnet.
C. With a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to
communicate with each other.
D. With a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to
communicate with each other.
E. With a network wide mask of 255.255.254.0, each interface does not require an IP
address.
3 .Which layer in the OSI reference model is responsible for determining the
availability of the receiving program and checking to see if enough resources exist
for that communication?
A. transport
B. network
C. presentation
D. session
E. application
4. Refer to the exhibit. Host A pings interface S0/0 on router 3. What is the TTL value
for that ping?
,A. 252
B. 253
C. 254
D. 255
Explanation/Reference:
From the CCNA ICND2 Exam book: "Routers decrement the TTL by 1 every time they
forward a packet; if a router decrements the TTL to 0, it throws away the packet. This
prevents packets from rotating forever." I want to make it clear that before the router
forwards a packet, the TTL is still remain the same. For example in the topology above,
pings to S0/1 and S0/0 of Router 2 have the same TTL.
5. Which of the following describes the roles of devices in a WAN? (Choose three.)
A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
, D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.
6. Refer to the exhibit. Refer to the exhibit. After HostA pings HostB, which entry will
be in the ARP cache of HostA to support this transmission?
