1
CCNA EXAM QUESTIONS WITH CORRECT
ANSWERS LATEST GRADED A+.
书山有路勤为书山有路勤为径，学海无涯苦作舟书
A client packet is received by a server. The packet has a destination port
number of 143. What service is the client requesting?
山书山有路勤为径，学海无涯苦作舟有路勤为径，
Telnet 学海无涯苦作舟径，学海无涯苦作舟
SSH
IMAP
FTP - (answer)IMAP
Which two functions are performed at the MAC sublayer of the OSI Data Link
Layer to facilitate Ethernet communication?
- handles communication between upper layer networking software and
Ethernet NIC hardware
- places information in the Ethernet frame that identifies which network layer
protocol is being encapsulated by the frame
- implements trailer with frame check sequence for error detection
- adds Ethernet control information to network protocol data
- applies delimiting of Ethernet frame fields to synchronize communication bet
- (answer)- places information in the Ethernet frame that identifies which
network layer protocol is being encapsulated by the frame
- adds Ethernet control information to network protocol data
Which two functions are performed at the MAC sublayer of the OSI Data Link
Layer to facilitate Ethernet communication?
- adds Ethernet control information to network protocol data
- integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit
Ethernet over copper
- handles communication between upper layer networking software and
Ethernet NIC hardware
, 2
- implements CSMA/CD over legacy shared half-duplex media
- enables IPv4 and IPv6 to utilize the same physical medium - (answer)- adds
Ethernet control information to network protocol data
书山有路勤为书山有路勤为径，学海无涯苦作舟书
山书山有路勤为径，学海无涯苦作舟有路勤为径，
- implements CSMA/CD over legacy shared half-duplex media
学海无涯苦作舟径，学海无涯苦作舟
Which two functions are performed at the MAC sublayer of the OSI Data Link
Layer to facilitate Ethernet communication?
- implements trailer with frame check sequence for error detection
- handles communication between upper layer networking software and
Ethernet NIC hardware
- adds Ethernet control information to network protocol data
- places information in the Ethernet frame that identifies which network layer
protocol is being encapsulated by the frame
- implements a process to delimit fields within an Ethernet 2 frame - (answer)-
implements trailer with frame check sequence for error detection
- adds Ethernet control information to network protocol data
A new network administrator has been asked to enter a banner message on a
Cisco device. What is the fastest way a network administrator could test
whether the banner is properly configured?
- Enter CTRL-Z at the privileged mode prompt.
- Power cycle the device.
- Exit privileged EXEC mode and press Enter.
- Exit global configuration mode.
- Reboot the device. - (answer)Exit privileged EXEC mode and press Enter.
What happens when the transport input ssh command is entered on the switch
vty lines?
- The switch requires a username/password combination for remote access.
, 3
- The SSH client on the switch is enabled.
- Communication between the switch and remote users is encrypted.
- The书山有路勤为书山有路勤为径，学海无涯苦作舟书
switch requires remote connections via a proprietary client software. -
山书山有路勤为径，学海无涯苦作舟有路勤为径，
(answer)Communication between the switch and remote users is encrypted.
学海无涯苦作舟径，学海无涯苦作舟
What is the subnet ID associated with the IPv6 address
2001:DA48:FC5:A4:3D1B::1/64?
- 2001:DA48::/64
- 2001::/64
- 2001:DA48:FC5:A4::/64
- 2001:DA48:FC5::A4:/64 - (answer)2001:DA48:FC5:A4::/64
A client is using SLAAC to obtain an IPv6 address for its interface. After an
address has been generated and applied to the interface, what must the client
do before it can begin to use this IPv6 address?
- It must send an ICMPv6 Router Solicitation message to determine what
default gateway it should use.
- It must send a DHCPv6 INFORMATION-REQUEST message to request the
address of the DNS server.
- It must send a DHCPv6 REQUEST message to the DHCPv6 server to request
permission to use this address.
- It must send an ICMPv6 Neighbor Solicitation message to ensure that the
address is not already in use on the network. - (answer)It must send an
ICMPv6 Neighbor Solicitation message to ensure that the address is not already
in use on the network.
Which range of link-local addresses can be assigned to an IPv6-enabled
interface?
- FE80::/10
, 4
- FDEE::/7
- FF00::/8
书山有路勤为书山有路勤为径，学海无涯苦作舟书
- FEC0::/10 - (answer)FE80::/10
山书山有路勤为径，学海无涯苦作舟有路勤为径，
学海无涯苦作舟径，学海无涯苦作舟
What mechanism is used by a router to prevent a received IPv4 packet from
traveling endlessly on a network?
- It checks the value of the TTL field and if it is 100, it discards the packet and
sends a Destination Unreachable message to the source host.
- It increments the value of the TTL field by 1 and if the result is 100, it discards
the packet and sends a Parameter Problem message to the source host.
- It checks the value of the TTL field and if it is 0, it discards the packet and
sends a Destination Unreachable message to the source host.
- It decrements the value of the TTL field by 1 and if the result is 0, it discards
the packet and sends a Time Exceeded message to the source host. -
(answer)It decrements the value of the TTL field by 1 and if the result is 0, it
discards the packet and sends a Time Exceeded message to the source host.
A network administrator is designing the layout of a new wireless network.
Which three areas of concern should be accounted for when building a wireless
network? (Choose three.)
mobility options
security
interference
coverage area
packet collision
extensive cabling - (answer)- security
- interference
- coverage area
CCNA EXAM QUESTIONS WITH CORRECT
ANSWERS LATEST GRADED A+.
书山有路勤为书山有路勤为径，学海无涯苦作舟书
A client packet is received by a server. The packet has a destination port
number of 143. What service is the client requesting?
山书山有路勤为径，学海无涯苦作舟有路勤为径，
Telnet 学海无涯苦作舟径，学海无涯苦作舟
SSH
IMAP
FTP - (answer)IMAP
Which two functions are performed at the MAC sublayer of the OSI Data Link
Layer to facilitate Ethernet communication?
- handles communication between upper layer networking software and
Ethernet NIC hardware
- places information in the Ethernet frame that identifies which network layer
protocol is being encapsulated by the frame
- implements trailer with frame check sequence for error detection
- adds Ethernet control information to network protocol data
- applies delimiting of Ethernet frame fields to synchronize communication bet
- (answer)- places information in the Ethernet frame that identifies which
network layer protocol is being encapsulated by the frame
- adds Ethernet control information to network protocol data
Which two functions are performed at the MAC sublayer of the OSI Data Link
Layer to facilitate Ethernet communication?
- adds Ethernet control information to network protocol data
- integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit
Ethernet over copper
- handles communication between upper layer networking software and
Ethernet NIC hardware
, 2
- implements CSMA/CD over legacy shared half-duplex media
- enables IPv4 and IPv6 to utilize the same physical medium - (answer)- adds
Ethernet control information to network protocol data
书山有路勤为书山有路勤为径，学海无涯苦作舟书
山书山有路勤为径，学海无涯苦作舟有路勤为径，
- implements CSMA/CD over legacy shared half-duplex media
学海无涯苦作舟径，学海无涯苦作舟
Which two functions are performed at the MAC sublayer of the OSI Data Link
Layer to facilitate Ethernet communication?
- implements trailer with frame check sequence for error detection
- handles communication between upper layer networking software and
Ethernet NIC hardware
- adds Ethernet control information to network protocol data
- places information in the Ethernet frame that identifies which network layer
protocol is being encapsulated by the frame
- implements a process to delimit fields within an Ethernet 2 frame - (answer)-
implements trailer with frame check sequence for error detection
- adds Ethernet control information to network protocol data
A new network administrator has been asked to enter a banner message on a
Cisco device. What is the fastest way a network administrator could test
whether the banner is properly configured?
- Enter CTRL-Z at the privileged mode prompt.
- Power cycle the device.
- Exit privileged EXEC mode and press Enter.
- Exit global configuration mode.
- Reboot the device. - (answer)Exit privileged EXEC mode and press Enter.
What happens when the transport input ssh command is entered on the switch
vty lines?
- The switch requires a username/password combination for remote access.
, 3
- The SSH client on the switch is enabled.
- Communication between the switch and remote users is encrypted.
- The书山有路勤为书山有路勤为径，学海无涯苦作舟书
switch requires remote connections via a proprietary client software. -
山书山有路勤为径，学海无涯苦作舟有路勤为径，
(answer)Communication between the switch and remote users is encrypted.
学海无涯苦作舟径，学海无涯苦作舟
What is the subnet ID associated with the IPv6 address
2001:DA48:FC5:A4:3D1B::1/64?
- 2001:DA48::/64
- 2001::/64
- 2001:DA48:FC5:A4::/64
- 2001:DA48:FC5::A4:/64 - (answer)2001:DA48:FC5:A4::/64
A client is using SLAAC to obtain an IPv6 address for its interface. After an
address has been generated and applied to the interface, what must the client
do before it can begin to use this IPv6 address?
- It must send an ICMPv6 Router Solicitation message to determine what
default gateway it should use.
- It must send a DHCPv6 INFORMATION-REQUEST message to request the
address of the DNS server.
- It must send a DHCPv6 REQUEST message to the DHCPv6 server to request
permission to use this address.
- It must send an ICMPv6 Neighbor Solicitation message to ensure that the
address is not already in use on the network. - (answer)It must send an
ICMPv6 Neighbor Solicitation message to ensure that the address is not already
in use on the network.
Which range of link-local addresses can be assigned to an IPv6-enabled
interface?
- FE80::/10
, 4
- FDEE::/7
- FF00::/8
书山有路勤为书山有路勤为径，学海无涯苦作舟书
- FEC0::/10 - (answer)FE80::/10
山书山有路勤为径，学海无涯苦作舟有路勤为径，
学海无涯苦作舟径，学海无涯苦作舟
What mechanism is used by a router to prevent a received IPv4 packet from
traveling endlessly on a network?
- It checks the value of the TTL field and if it is 100, it discards the packet and
sends a Destination Unreachable message to the source host.
- It increments the value of the TTL field by 1 and if the result is 100, it discards
the packet and sends a Parameter Problem message to the source host.
- It checks the value of the TTL field and if it is 0, it discards the packet and
sends a Destination Unreachable message to the source host.
- It decrements the value of the TTL field by 1 and if the result is 0, it discards
the packet and sends a Time Exceeded message to the source host. -
(answer)It decrements the value of the TTL field by 1 and if the result is 0, it
discards the packet and sends a Time Exceeded message to the source host.
A network administrator is designing the layout of a new wireless network.
Which three areas of concern should be accounted for when building a wireless
network? (Choose three.)
mobility options
security
interference
coverage area
packet collision
extensive cabling - (answer)- security
- interference
- coverage area
