CISSP PRACTICE QUESTIONS – 20200111

Effective CISSP Questions

As a CISSP aspirant, you are studying the network concepts. Which of the following statement is true?
A. Mobile devices running IP must have a routing table like a router to transmit data
B. Network nodes must execute routing protocols to transmit packets
C. IP, IPX, and NetBEUI are routed protocols supported by routers
D. Split horizon is a method to identify the minimum hop count


Kindly be reminded that the suggested answer is for your reference only. It doesn’t matter whether you have the right or wrong answer. What really matters is your reasoning process and justifications.

My suggested answer is A. Mobile devices running IP must have a routing table like a router to transmit data.

IP devices use a routing table to determine which network interface should the data be transmitted. Every IP device (no matter it’s a router, server, laptop, or mobile phone) has a routing table for applications to communicate with one another. Even a device has no network interface card (NIC), a software-based virtual NIC can be installed for applications to communicate on the localhost.

The following are OS commands to show the routing table:

  • route print (Windows)
  • netstat -r (Linux)

Network nodes executing “routed protocols” to transmit data, such as IP or IPX.

NetBEUI is designed to support LANs only; it’s not routable, not a “routed protocol.”

Split horizon is a method of preventing a routing loop in a network.

 

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