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25B Networking Essentials Exam Solution
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25B Networking Essentials Exam Solution
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25B Networking Essentials Exam SolutionWhat is NOT a physical layer problem? Answer: Wireless
2 benefits of NAT? Answer: Save public IPs
Extra layer of security
Reach limit for a twisted-pair cable? Answer: 100m
Data encoded using light? Answer: Fiber optic
Throughput definition? Answer: The measure of bits transferred over time
How many bits in a hextet? Answer: 16
What is Layer 3? Answer: IP or Logical
What is Layer 2? Answer: MAC or Physical
What allows Ipv6 and Ipv4 to be used simultaneously? Answer: Dual stack
802.11 Standard Answer: WIFI
802.15 Standard Answer: Bluetooth
, When configuring your secret password without line con 0, what configuration mode should it be
in? Answer: USER EXEC
What does the command #service password-encryption do? Answer: Encrypts all plain text
passwords
What are features of multicast? Answer: Specific IP
Router
1 to Group of Hosts
What assists in collision prevention? Answer: CSMA/CA
2 benefits of a Layered Network model? Answer: Assists in protocol design
Prevents 1 layer from effecting other layers
When a PC works straight out of the box, what is enabled? Answer: Static
DHCP
HTTP port number Answer: 443
What is Tunneling? Answer: Encapsulation of IPV4 and IPV6
Purpose of SSH? Answer: To secure access / Data
Process of condensing servers is called what? Answer: Virtualization
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