CCNA 1 REVIEWED
GUIDE TEST QUESTIONS
AND CORRECT ANSWERS
GRADED A+ 2025-2026
The network administrator enters these commands into the R1 router:
R1# copy running-config tftp
Address or name of remote host [ ]?
When the router prompts for an address or remote host name, what IP address should
the administrator enter at the prompt? - ANS-192.168.11.252
Which three statements characterize the transport layer protocols? - ANS-TCP and UDP
port numbers are used by application layer protocols.
TCP uses windowing and sequencing to provide reliable transfer of data.
TCP is a connection-oriented protocol. UDP is a connectionless protocol.
What is the purpose of ICMP messages? - ANS-to provide feedback of IP packet
transmissions
A technician uses the ping 127.0.0.1 command. What is the technician testing? - ANS-
the TCP/IP stack on a network host
What will a Layer 2 switch do when the destination MAC address of a received frame is
not in the MAC table? - ANS-It forwards the frame out of all ports except for the port at
which the frame was received.
, What is a characteristic of the LLC sublayer? - ANS-It places information in the frame
that allows multiple Layer 3 protocols to use the same network interface and media.
On which switch interface would an administrator configure an IP address so that the
switch can be managed remotely? - ANS-VLAN 1
A network engineer is measuring the transfer of bits across the company backbone for
a mission critical database application. The engineer notices that the network
throughput appears lower than the bandwidth expected. Which three factors could
influence the differences in throughput? - ANS-the amount of traffic that is currently
crossing the network
the type of traffic that is crossing the network
the latency that is created by the number of network devices that the data is crossing
When applied to a router, which command would help mitigate brute-force password
attacks against the router? - ANS-login block-for 60 attempts 5 within 60
Which two statements correctly describe a router memory type and its contents? -
ANS-ROM is nonvolatile and contains basic diagnostic software.
RAM is volatile and stores the IP routing table.
Which two components are necessary for a wireless client to be installed on a WLAN? -
ANS-wireless NIC
wireless client software
packet tracer activity - ANS-winner
A host is accessing a Web server on a remote network. Which three functions are
performed by intermediary network devices during this conversation? - ANS-
regenerating data signals
notifying other devices when errors occur
applying security settings to control the flow of data
GUIDE TEST QUESTIONS
AND CORRECT ANSWERS
GRADED A+ 2025-2026
The network administrator enters these commands into the R1 router:
R1# copy running-config tftp
Address or name of remote host [ ]?
When the router prompts for an address or remote host name, what IP address should
the administrator enter at the prompt? - ANS-192.168.11.252
Which three statements characterize the transport layer protocols? - ANS-TCP and UDP
port numbers are used by application layer protocols.
TCP uses windowing and sequencing to provide reliable transfer of data.
TCP is a connection-oriented protocol. UDP is a connectionless protocol.
What is the purpose of ICMP messages? - ANS-to provide feedback of IP packet
transmissions
A technician uses the ping 127.0.0.1 command. What is the technician testing? - ANS-
the TCP/IP stack on a network host
What will a Layer 2 switch do when the destination MAC address of a received frame is
not in the MAC table? - ANS-It forwards the frame out of all ports except for the port at
which the frame was received.
, What is a characteristic of the LLC sublayer? - ANS-It places information in the frame
that allows multiple Layer 3 protocols to use the same network interface and media.
On which switch interface would an administrator configure an IP address so that the
switch can be managed remotely? - ANS-VLAN 1
A network engineer is measuring the transfer of bits across the company backbone for
a mission critical database application. The engineer notices that the network
throughput appears lower than the bandwidth expected. Which three factors could
influence the differences in throughput? - ANS-the amount of traffic that is currently
crossing the network
the type of traffic that is crossing the network
the latency that is created by the number of network devices that the data is crossing
When applied to a router, which command would help mitigate brute-force password
attacks against the router? - ANS-login block-for 60 attempts 5 within 60
Which two statements correctly describe a router memory type and its contents? -
ANS-ROM is nonvolatile and contains basic diagnostic software.
RAM is volatile and stores the IP routing table.
Which two components are necessary for a wireless client to be installed on a WLAN? -
ANS-wireless NIC
wireless client software
packet tracer activity - ANS-winner
A host is accessing a Web server on a remote network. Which three functions are
performed by intermediary network devices during this conversation? - ANS-
regenerating data signals
notifying other devices when errors occur
applying security settings to control the flow of data
