D481 Security Foundations

Desktop computers are connected to the building backbone in the wiring closet. What is another name for this wiring closet? - Answer-Intermediate distribution frame (IDF) 802.3-1983 - Answer-10Base5 802.3a-1985 - Answer-10Base2 802.3i-1990 - Answer-10Base-T 802.3j-1993 - Answer-10Base-F 802.3af-2003 - Answer-PoE Most modern networks follow the 802.3 standard. This standard offers technical solutions to business needs. One business need is to connect client workstations to servers. Which technical solution does 802.3 offer for this business? - Answer-Create a star-wired network using switches Ethernet started with a bus topology. Computers in Ethernet use shared media and therefore need an access control system to allow them to share this media. Which system does Ethernet use for access control of shared media? - Answer-Carrier Sense Multiple Access Collision Detection (CSMA/CD) Legacy networks contained hubs and bridges. Most modern networks use switches and routers but not hubs and bridges. Why have bridges been removed from modern networks? - Answer-Bridges were phased out because they are not needed to divide collision domains in modern networks; switches perform this task. Computer networks provide critical functions for organizations. This means that network resiliency is very important. How can a network architect build resiliency into a network? - Answer-Running servers with dual Network Interface Cards (NIC) can provide resiliency. Connection-oriented - Answer-Normal discussion between two people User Datagram Protocol (UDP) - Answer-Connectionless Transmission Control Protocol (TCP) - Answer-Connection-oriented Internet Protocol (IP) - Answer-Connectionless