CCNA 1 PROFESSIONAL REVIEW SHEET
TESTED QUESTIONS MASTER FILE
●● Which range of link-local addresses can be assigned to an IPv6-
enabled interface?
Answer: FE80::/10
●● What would be the interface ID of an IPv6 enabled interface with a
MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is
generated by using the EUI-64 process?
Answer: 1E6F:65FF:FEC2:BDF8
●● An organization is assigned an IPv6 address block of
2001:db8:0:ca00::/56. How many subnets can be created without using
bits in the interface ID space?
Answer: 256
●● When a switch configuration includes a user-defined error threshold
on a per-port basis, to which switching method will the switch revert
when the error threshold is reached?
Answer: store-and-forward
●● Which two statements are correct about MAC and IP addresses
during data transmission if NAT is not involved?
,Answer: -Destination IP addresses in a packet header remain constant
along the entire path to a target host.
-Destination and source MAC addresses have local significance and
change every time a frame goes from one LAN to another.
●● What is one main characteristic of the data link layer?
Answer: It shields the upper layer protocol from being aware of the
physical medium to be used in the communication.
●● What are three characteristics of the CSMA/CD process?
Answer: - A device listens and waits until the media is not busy before
transmitting.
- After detecting a collision, hosts can attempt to resume transmission
after a random time delay has expired.
- All of the devices on a segment see data that passes on the network
medium.
●● What are two primary responsibilities of the Ethernet MAC
sublayer?
Answer: accessing the media
data encapsulation
●● Which two commands can be used on a Windows host to display the
routing table?
, Answer: route print
netstat -r
●● What are two functions that are provided by the network layer?
Answer: - directing data packets to destination hosts on other networks
- providing end devices with a unique network identifier
●● Which two statements describe features of an IPv4 routing table on a
router?
Answer: - If there are two or more possible routes to the same
destination, the route associated with the higher metric value is included
in the routing table.
- If a default static route is configured in the router, an entry will be
included in the routing table with source code S.
●● How does the service password-encryption command enhance
password security on Cisco routers and switches?
Answer: It encrypts passwords that are stored in router or switch
configuration files.
●● Why would a Layer 2 switch need an IP address?
Answer: to enable the switch to be managed remotely
TESTED QUESTIONS MASTER FILE
●● Which range of link-local addresses can be assigned to an IPv6-
enabled interface?
Answer: FE80::/10
●● What would be the interface ID of an IPv6 enabled interface with a
MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is
generated by using the EUI-64 process?
Answer: 1E6F:65FF:FEC2:BDF8
●● An organization is assigned an IPv6 address block of
2001:db8:0:ca00::/56. How many subnets can be created without using
bits in the interface ID space?
Answer: 256
●● When a switch configuration includes a user-defined error threshold
on a per-port basis, to which switching method will the switch revert
when the error threshold is reached?
Answer: store-and-forward
●● Which two statements are correct about MAC and IP addresses
during data transmission if NAT is not involved?
,Answer: -Destination IP addresses in a packet header remain constant
along the entire path to a target host.
-Destination and source MAC addresses have local significance and
change every time a frame goes from one LAN to another.
●● What is one main characteristic of the data link layer?
Answer: It shields the upper layer protocol from being aware of the
physical medium to be used in the communication.
●● What are three characteristics of the CSMA/CD process?
Answer: - A device listens and waits until the media is not busy before
transmitting.
- After detecting a collision, hosts can attempt to resume transmission
after a random time delay has expired.
- All of the devices on a segment see data that passes on the network
medium.
●● What are two primary responsibilities of the Ethernet MAC
sublayer?
Answer: accessing the media
data encapsulation
●● Which two commands can be used on a Windows host to display the
routing table?
, Answer: route print
netstat -r
●● What are two functions that are provided by the network layer?
Answer: - directing data packets to destination hosts on other networks
- providing end devices with a unique network identifier
●● Which two statements describe features of an IPv4 routing table on a
router?
Answer: - If there are two or more possible routes to the same
destination, the route associated with the higher metric value is included
in the routing table.
- If a default static route is configured in the router, an entry will be
included in the routing table with source code S.
●● How does the service password-encryption command enhance
password security on Cisco routers and switches?
Answer: It encrypts passwords that are stored in router or switch
configuration files.
●● Why would a Layer 2 switch need an IP address?
Answer: to enable the switch to be managed remotely
