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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
  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.