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Cisco Certified Network Associate (CCNA) Questions 646–650 (page: 131)

Updated On: 10-Feb-2026

When a WLAN with WPA2 PSK is configured in the Wireless LAN Controller GUI, which format is supported?

  1. decimal
  2. ASCII
  3. unicode
  4. base64

Answer(s): B



Refer to the exhibit. A network administrator has been tasked with securing VTY access to a router. Which access-list entry accomplishes this task?

  1. access-list 101 permit tcp 10.1.1.0 0.0.0.255 172.16.1.0 0.0.0.255 eq telnet
  2. access-list 101 permit tcp 10.1.1.0 0.0.0.255 172.16.1.0 0.0.0.255 eq scp
  3. access-list 101 permit tcp 10.1.1.0 0.0.0.255 172.16.1.0 0.0.0.255 eq https
  4. access-list 101 permit tcp 10.1.1.0 0.0.0.255 172.16.1.0 0.0.0.255 eq ssh

Answer(s): A



Which two protocols must be disabled to increase security for management connections to a Wireless LAN Controller? (Choose two.)

  1. HTTPS
  2. SSH
  3. HTTP
  4. Telnet
  5. TFTP

Answer(s): C,D



Which security program element involves installing badge readers on data-center doors to allow workers to enter and exit based on their job roles?

  1. physical access control
  2. biometrics
  3. role-based access control
  4. multifactor authentication

Answer(s): A



Which function is performed by DHCP snooping?

  1. listens to multicast traffic for packet forwarding
  2. rate-limits certain traffic
  3. propagates VLAN information between switches
  4. provides DDoS mitigation

Answer(s): B



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