D481 SECURITY FOUNDATIONS QUESTIONS
Desktop computers are connected to the building backbone in the wiring closet. What is
another name for this wiring closet? - Answers- Intermediate distribution frame (IDF)
802.3-1983 - Answers- 10Base5
802.3a-1985 - Answers- 10Base2
802.3i-1990 - Answers- 10Base-T
802.3j-1993 - Answers- 10Base-F
802.3af-2003 - Answers- 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? - Answers- 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? - Answers- 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? - Answers- 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?
- Answers- Running servers with dual Network Interface Cards (NIC) can provide
resiliency.
Connection-oriented - Answers- Normal discussion between two people
User Datagram Protocol (UDP) - Answers- Connectionless
Transmission Control Protocol (TCP) - Answers- Connection-oriented
Internet Protocol (IP) - Answers- Connectionless
IPv4 - Answers- Broadcast queries
, IPv6 - Answers- Neighbor Discovery Protocol (NDP)
IPv4 - Answers- Address Resolution Protocol (ARP)
IPv4 - Answers- Allows broadcast messages
IPv6 - Answers- Has built-in network security
IPv6 - Answers- Makes assigning addresses easier
IPv4 - Answers- Uses Network Address Translation (NAT)
What is the main function of the Internet Protocol (IP)? - Answers- The main function of
the Internet Protocol (IP) is to direct packets across the network.
Why can worms spread faster than viruses? - Answers- Worms are self-replicating.
Which method is used to access a web page? - Answers- Get
Border Gateway Protocol (BGP) - Answers- 179
Kerberos - Answers- 88
DNS - Answers- 53
Telnet - Answers- 23
What is a very common Application Layer protocol? - Answers- Hypertext Transport
Protocol (HTTP)
Which major function should the Presentation Layer provide? - Answers-
Encryption/Decryption
The Session Layer can provide different modes of communication. Which type of
communication is exemplified by broadcast radio? - Answers- Simplex (IP)
Which port is insecure and should be blocked by the firewall? - Answers- 23
Which type of communication is regular face-to-face communication between two
people? - Answers- Connection-oriented
What is another name for packets? - Answers- Frames
What is a good way to provide resilience in the connection between a server and the
local area network backbone? - Answers- Dual NICs
Desktop computers are connected to the building backbone in the wiring closet. What is
another name for this wiring closet? - Answers- Intermediate distribution frame (IDF)
802.3-1983 - Answers- 10Base5
802.3a-1985 - Answers- 10Base2
802.3i-1990 - Answers- 10Base-T
802.3j-1993 - Answers- 10Base-F
802.3af-2003 - Answers- 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? - Answers- 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? - Answers- 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? - Answers- 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?
- Answers- Running servers with dual Network Interface Cards (NIC) can provide
resiliency.
Connection-oriented - Answers- Normal discussion between two people
User Datagram Protocol (UDP) - Answers- Connectionless
Transmission Control Protocol (TCP) - Answers- Connection-oriented
Internet Protocol (IP) - Answers- Connectionless
IPv4 - Answers- Broadcast queries
, IPv6 - Answers- Neighbor Discovery Protocol (NDP)
IPv4 - Answers- Address Resolution Protocol (ARP)
IPv4 - Answers- Allows broadcast messages
IPv6 - Answers- Has built-in network security
IPv6 - Answers- Makes assigning addresses easier
IPv4 - Answers- Uses Network Address Translation (NAT)
What is the main function of the Internet Protocol (IP)? - Answers- The main function of
the Internet Protocol (IP) is to direct packets across the network.
Why can worms spread faster than viruses? - Answers- Worms are self-replicating.
Which method is used to access a web page? - Answers- Get
Border Gateway Protocol (BGP) - Answers- 179
Kerberos - Answers- 88
DNS - Answers- 53
Telnet - Answers- 23
What is a very common Application Layer protocol? - Answers- Hypertext Transport
Protocol (HTTP)
Which major function should the Presentation Layer provide? - Answers-
Encryption/Decryption
The Session Layer can provide different modes of communication. Which type of
communication is exemplified by broadcast radio? - Answers- Simplex (IP)
Which port is insecure and should be blocked by the firewall? - Answers- 23
Which type of communication is regular face-to-face communication between two
people? - Answers- Connection-oriented
What is another name for packets? - Answers- Frames
What is a good way to provide resilience in the connection between a server and the
local area network backbone? - Answers- Dual NICs
