Cisco CCNA IP Services Flashcards
6 cards from real Cisco CCNA practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 6 Cisco CCNA IP Services flashcards as text
Which protocol does a DHCP client use to initially discover a DHCP server on the network?
Answer: DHCP Discover (broadcast)
A DHCP client sends a DHCP Discover message as a broadcast to find available DHCP servers on the local network.
What is the default lease time for a DHCP address assignment on a Cisco IOS router if not explicitly configured?
Answer: 1 day
Cisco IOS DHCP server defaults to a 1-day (24-hour) lease time when no explicit lease duration is configured.
Which NTP stratum number indicates that a device is directly connected to a reference clock (e.g., GPS)?
Answer: Stratum 1
Stratum 1 NTP servers are directly connected to a stratum 0 reference clock source such as GPS or atomic clocks.
What is the well-known UDP port number used by SNMP agents to receive requests from an SNMP manager?
Answer: 161
SNMP agents listen on UDP port 161 for polling requests sent by the SNMP manager.
Which Syslog severity level number represents a 'Critical' condition on a Cisco device?
Answer: 2
Syslog severity level 2 is Critical, indicating serious conditions that require immediate attention.
Which DNS record type maps a fully qualified domain name (FQDN) to an IPv4 address?
Answer: A record
An A (Address) record maps a hostname to a 32-bit IPv4 address in the DNS namespace.