CCNA TCP/IP

Question 1

Which command is necessary to permit SSH or Telnet access to a switch that is otherwise configured for these vty protocols ?

A) transport type all

B) transport output all

C) transport preferred all

D) transport input all

Question 2

A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. What is the highest layer of the protocol stack that the network administrator is using for this operation?

A) application

B) presentation

C) session

D) transport

E) internet

F) data link

Question 3

Where does routing occur within the DoD TCP/IP reference model?

A) application

B) internet

C) network

D) transport

Question 4

Which statement describes the process of dynamically assigning IP addresses by the DHCP server?

A) Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.

B) Addresses are permanently assigned so that the hosts uses the same address at all times.

C) Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.

D) Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.

Question 5

Which two tasks does the Dynamic Host Configuration Protocol perform? (Choose two)

A) Set the IP gateway to be used by the network.

B) Perform host discovery used DHCPDISCOVER message.

C) Configure IP address parameters from DHCP server to a host.

D) Provide an easy management of layer 3 devices.

E) Monitor IP performance using the DHCP server.

F) Assign and renew IP address from the default pool.

Question 6

How does a DHCP server dynamically assign IP addresses to hosts?

A) Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.

B) Addresses are permanently assigned so that the hosts uses the same address at all times.

C) Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.

D) Addresses are leased to hosts, A host will usually keep te same address by periodically contacting the DHCP server to renew the lease.

Question 7

Which statement is correct regardig the operation of DHCP?

A) A DHCP client uses a ping to detect address conflicts.

B) A DHCP server uses a gratuitous ARP to detect DHCP client.

C) A DHCP client uses a graiuitous ARP to detect DHCP server.

D) If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.

E) If an address conflict is detected, the address is removed from the pool for an amount of time configurable by the administrator.

F) If an address conflict is detected, the address is removed from the pool and will not be reused until the server is rebooted.

Question 8

Which of the following protocols uses both TCP and UDP ports ?

A) SMTP

B) Telnet

C) FTP

D) DNS