CCNA 6

Which two statements about NTP operations are true? (Choose two.)

• NTP uses UDP over IP.

• Cisco routers can act as both NTP authoritative servers and NTP clients.

• Cisco routers can act only as NTP servers.

• Cisco routers can act only as NTP clients.

• NTP uses TCP over IP.

Refer to the exhibit. Which configuration must be applied to the router that configures PAT to translate all addresses in VLAN 200 while allowing

devices on VLAN

100 to use their own IP addresses?

• Router1(config)#access-list 99 permit 192.168.100.32 0.0.0.31 Router1(config)#ip nat inside source list 99 interface gi1/0/0 overload

  Router1(config)#interface gi2/0/1.200 Router1(config)#ip nat inside Router1(config)#interface gi1/0/0 Router1(config)#ip nat outside

• Router1(config)#access-list 99 permit 192.168.100.0 0.0.0.255 Router1(config)#ip nat inside source list 99 interface gi1/0/0 overload

  Router1(config)#interface gi2/0/1.200 Router1(config)#ip nat inside Router1(config)#interface gi1/0/0 Router1(config)#ip nat outside

• Router1(config)#access-list 99 permit 209.165.201.2 255.255.255.255 Router1(config)#ip nat inside source list 99 interface gi1/0/0

  overload Router1(config)#interface gi2/0/1.200 Router1(config)#ip nat inside Router1(config)#interface gi1/0/0 Router1(config)#ip nat

  outside

• Router1(config)#access- list 99 permit 209.165.201.2 0.0.0.0 Router1(config)#ip nat inside source list 99 interface gi1/0/0 overload

  Router1(config)#interface gi2/0/1.200 Router1(config)#ip nat inside Router1(config)#interface gi1/0/0 Router1(config)#ip nat outside

Refer to the exhibit. Which two commands must be added to update the configuration of router R1 so that it accepts only encrypted connections?

(Choose two.)

• transport input ssh

• username CNAC secret R!41!3705926@

• crypto key generate rsa 1024

• line vty 0 4

• ip ssh version 2

Which command implies the use of SNMPv3?

• snmp-server user

• snmp-server host

• snmp-server enable traps

• snmp-server community

R1 as an NTP server must have:

✑ NTP authentication enabled

✑ NTP packets sourced from Interface loopback 0

✑ NTP stratum 2

✑ NTP packets only permitted to client IP 209.165.200.225

How should R1 be configured?

• ntp authenticate ntp authentication-key 2 sha1 CISCO123 ntp source Loopback0 ntp access-group server-only 10 ntp master 2 ! access-list

  10 permit udp host 209.165.200.225 any eq 123

• ntp authenticate ntp authentication-key 2 md5 CISCO123 ntp interface Loopback0 ntp access-group server-only 10 ntp stratum 2 ! accesslist

  10 permit 209.165.200.225

• ntp authenticate ntp authentication-key 2 md5 CISCO123 ntp source Loopback0 ntp access-group server-only 10 ntp master 2 ! access-list

  10 permit 209.165.200.225

• ntp authenticate ntp authentication-key 2 md5 CISCO123 ntp source Loopback0 ntp access-group server-only 10 ntp stratum 2 ! access-list

  10 permit udp host 209.165.200.225 any eq 123

What is a capability of FTP in network management operations?

• offers proprietary support at the session layer when transferring data

• uses separate control and data connections to move files between server and client

• encrypts data before sending between data resources

• devices are directly connected and use UDP to pass file information

A network engineer is configuring a switch so that it is remotely reachable via SSH. The engineer has already configured the host name on the

router. Which additional command must the engineer configure before entering the command to generate the RSA key?

• password password

• ip ssh authentication-retries 2

• ip domain-name domain

• crypto key generate rsa modulus 1024

Which QoS traffic handling technique retains excess packets in a queue and reschedules these packets for later transmission when the configured

maximum bandwidth has been surpassed?

• traffic policing

• weighted random early detection

• traffic prioritization

• traffic shaping

Refer to the exhibit. The DHCP server and clients are connected to the same switch. What is the next step to complete the DHCP configuration to

allow clients on

VLAN 1 to receive addresses from the DHCP server?

• Configure the ip dhcp snooping trust command on the interface that is connected to the DHCP client.

• Configure ip dhcp relay information option command on the interface that is connected to the DHCP server.

• Configure ip dhcp snooping trust command on the interface that is connected to the DHCP server.

• Configure the ip dhcp information option command on the interface that is connected to the DHCP client.

Which command must be entered to configure a DHCP relay?

• ip dhcp relay

• ip dhcp pool

• ip address dhcp

• ip helper-address