ITN (VERSION 7.00) - COMMUNICATING
BETWEEN NETWORKS EXAM
QUESTIONS WITH VERIFIED
ANSWERS. A+ GRADE 2025/2026.
What routing table entry has a next hop address associated with a destination network? -
ANS remote routes
What is one advantage that the IPv6 simplified header offers over IPv4? - ANS efficient
packet handling
When transporting data from real-time applications, such as streaming audio and video, which
field in the IPv6 header can be used to inform the routers and switches to maintain the same
path for the packets in the same conversation? - ANS Flow Label
What are two services provided by the OSI network layer? (Choose two.) - ANS encapsulating
PDUs from the transport layer
routing packets toward the destination
A computer can access devices on the same network but cannot access devices on other
networks. What is the probable cause of this problem? - ANS The computer has an invalid
default gateway address.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, What is a basic characteristic of the IP protocol? - ANS connectionless
Which statement describes a feature of the IP protocol? - ANS IP relies on upper layer
services to handle situations of missing or out-of-order packets.
Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?
- ANS Time-to-Live
Which parameter does the router use to choose the path to the destination when there are
multiple routes available? - ANS the lower metric value that is associated with the
destination network
What are two potential network problems that can result from ARP operation? (Choose two.) -
ANS Network attackers could manipulate MAC address and IP address mappings in ARP
messages with the intent of intercepting network traffic.
On large networks with low bandwidth, multiple ARP broadcasts could cause data
communication delays.
What is the effect of using the Router# copy running-config startup-config command on a
router? - ANS The contents of NVRAM will change.
What will happen if the default gateway address is incorrectly configured on a host? -
ANS The host cannot communicate with hosts in other networks.
Refer to the exhibit. A user PC has successfully transmitted packets to www.cisco.com. Which IP
address does the user PC target in order to forward its data off the local network? -
ANS 172.20.0.254
R1(config)# - ANS service password-encryption
R1> - ANS enable
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
BETWEEN NETWORKS EXAM
QUESTIONS WITH VERIFIED
ANSWERS. A+ GRADE 2025/2026.
What routing table entry has a next hop address associated with a destination network? -
ANS remote routes
What is one advantage that the IPv6 simplified header offers over IPv4? - ANS efficient
packet handling
When transporting data from real-time applications, such as streaming audio and video, which
field in the IPv6 header can be used to inform the routers and switches to maintain the same
path for the packets in the same conversation? - ANS Flow Label
What are two services provided by the OSI network layer? (Choose two.) - ANS encapsulating
PDUs from the transport layer
routing packets toward the destination
A computer can access devices on the same network but cannot access devices on other
networks. What is the probable cause of this problem? - ANS The computer has an invalid
default gateway address.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, What is a basic characteristic of the IP protocol? - ANS connectionless
Which statement describes a feature of the IP protocol? - ANS IP relies on upper layer
services to handle situations of missing or out-of-order packets.
Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?
- ANS Time-to-Live
Which parameter does the router use to choose the path to the destination when there are
multiple routes available? - ANS the lower metric value that is associated with the
destination network
What are two potential network problems that can result from ARP operation? (Choose two.) -
ANS Network attackers could manipulate MAC address and IP address mappings in ARP
messages with the intent of intercepting network traffic.
On large networks with low bandwidth, multiple ARP broadcasts could cause data
communication delays.
What is the effect of using the Router# copy running-config startup-config command on a
router? - ANS The contents of NVRAM will change.
What will happen if the default gateway address is incorrectly configured on a host? -
ANS The host cannot communicate with hosts in other networks.
Refer to the exhibit. A user PC has successfully transmitted packets to www.cisco.com. Which IP
address does the user PC target in order to forward its data off the local network? -
ANS 172.20.0.254
R1(config)# - ANS service password-encryption
R1> - ANS enable
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
