Cnit 344 Final Exam Review Questions With Complete Solutions

What are the three types of UTP cables? {Ans: Straight-through, crossover, rollover}What are the three major categories of security threats against wireless LANs? {Ans: War drivers, hackers, employees}What is the MTU of Optical Fiber? {Ans: ATM MTU = 17,966 bytesq}What is a default route? {Ans: Associates physical/logical interface with all unknown Layer 3 destinations, used to minimize routing tables}What is five step process of link-state routing protocols? {Ans: 1. each router learns about its own directly connected networks 2. each router responsible for contacting neighbors on directly connected networks 3. each router builds link-state packet containing state of each directly connected link 4. each router floods LSP to all neighbors 5. each router uses LSPs to construct database that is complete map of topology and computes best path to each destination network}What are common ICMP message types? {Ans: 0 - echo reply 3 - destination unreachable 4 - source quench 5 - redirect 8 - echo request 9 - router advertisement 10 - router solicitation 11 - time exceeded 12 - parameter problem 30 - traceroute}What is CSMA/CA? {Ans: Carrier Sense Multiple Access with Collision Avoidance: devices on WLAN must sense medium for