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Which description of a default gateway is true?

  1. It is a security feature that denies certain traffic.
  2. It is a device that receives IP packets that have no explicit next-hop in the routing table.
  3. It is a feature that translates between public and private addresses.
  4. It is a device that receives Layer 2 frames with an unknown destination address.

Answer(s): B


Reference:

https://www.certificationkits.com/cisco-certification/ccna-articles/cisco-ccna-intro-to-routing-basics/cisco-ccna-default-gateway-a-default-routes/



On which port does NETCONF operate by default?

  1. 23
  2. 443
  3. 822
  4. 830

Answer(s): D



Which device is a system that monitors and controls incoming and outgoing network traffic based on predetermined security roles?

  1. router
  2. switch
  3. load balancer
  4. firewall

Answer(s): D



In DNS, which record specifies an alias that refers to another name that ultimately resolves to an IP address?

  1. CNAME
  2. NS
  3. AAA
  4. SOA

Answer(s): A


Reference:

https://ns1.com/resources/dns-types-records-servers-and-queries






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