CCNA 2 Modules 1–4 Exam
2026 | Questions, Answers
& Rationales Study Guide
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Updated 2026 Questions and Answers
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Included
,physical access to the router What must an administrator have in order to reset a lost password on a router?
a TFTP server
a crossover cable
access to another router
physical access to the router
username username secret secret When configuring a switch for SSH access, what other command that is
associated with the login local command is required to be entered on the switch?
enable secret password
password password
username username secret secret
login block-for seconds attempts number withinseconds
show controllers Which command displays information about the auto-MDIX setting for a specific
interface?
show interfaces
show controllers
show processes
show running-config
on the half-duplex end of the connection If one end of an Ethernet connection is configured for full duplex and the other
end of the connection is configured for half duplex, where would late collisions
be observed?
on both ends of the connection
on the full-duplex end of the connection
only on serial interfaces
on the half-duplex end of the connection
, boot system Which command is used to set the BOOT environment variable that defines where
to find the IOS image file on a switch?
config-register
boot system
boot loader
confreg
BOOT environment variable What does a switch use to locate and load the IOS image?
BOOT environment variable
IOS image file
POST
startup-config
NVRAM
SSH Which protocol adds security to remote connections?
FTP
HTTP
NetBEUI
POP
SSH
It is a logical interface internal to the router. What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?
The no shutdown command is required to place this interface in an UP state.
It is a logical interface internal to the router.
Only one loopback interface can be enabled on a router.
It is assigned to a physical port and can be connected to other devices.
64 bytes What is the minimum Ethernet frame size that will not be discarded by the receiver
as a runt frame?
64 bytes
512 bytes
1024 bytes
1500 bytes
2026 | Questions, Answers
& Rationales Study Guide
|Graded A+ | Guaranteed
success|
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
,physical access to the router What must an administrator have in order to reset a lost password on a router?
a TFTP server
a crossover cable
access to another router
physical access to the router
username username secret secret When configuring a switch for SSH access, what other command that is
associated with the login local command is required to be entered on the switch?
enable secret password
password password
username username secret secret
login block-for seconds attempts number withinseconds
show controllers Which command displays information about the auto-MDIX setting for a specific
interface?
show interfaces
show controllers
show processes
show running-config
on the half-duplex end of the connection If one end of an Ethernet connection is configured for full duplex and the other
end of the connection is configured for half duplex, where would late collisions
be observed?
on both ends of the connection
on the full-duplex end of the connection
only on serial interfaces
on the half-duplex end of the connection
, boot system Which command is used to set the BOOT environment variable that defines where
to find the IOS image file on a switch?
config-register
boot system
boot loader
confreg
BOOT environment variable What does a switch use to locate and load the IOS image?
BOOT environment variable
IOS image file
POST
startup-config
NVRAM
SSH Which protocol adds security to remote connections?
FTP
HTTP
NetBEUI
POP
SSH
It is a logical interface internal to the router. What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?
The no shutdown command is required to place this interface in an UP state.
It is a logical interface internal to the router.
Only one loopback interface can be enabled on a router.
It is assigned to a physical port and can be connected to other devices.
64 bytes What is the minimum Ethernet frame size that will not be discarded by the receiver
as a runt frame?
64 bytes
512 bytes
1024 bytes
1500 bytes
