Wide Area Networks

What is a Wide Area Network (WAN)?

• A network that spans a single building or campus

• A network that connects computers across large geographic areas, such as cities or countries

• A personal area network (PAN) for mobile devices

• A local network within a single office

What is the maximum speed of a dial-up connection?

• 14.4 Kbps

• 28.8 Kbps

• 56 Kbps

• 128 Kbps

What are the two types of ISDN connections and their maximum speeds?

• DSL and Cable; 10 Mbps and 50 Mbps

• T1 and T3; 1.544 Mbps and 44.736 Mbps

• Basic Rate Interface (BRI) at 128 Kbps and Primary Rate Interface (PRI) at 1.544 Mbps

• Ethernet and Fiber; 100 Mbps and 1 Gbps

What is the purpose of IPSec in a VPN?

• To encrypt data but not authenticate users

• To provide secure communication by using protocols like Security Association (SA), Authentication Header (AH), and Encapsulating Security Protocol (ESP)

• To increase network speed for VPN connections

• To replace firewalls in a network

Arrange the following network speeds from smallest to largest: T1, E1, E3, T3.

• T1, T3, E1, E3

• T1, E1, T3, E3

• T1, E1, E3, T3

• T3, T1, E3, E1

Which of the following represents the current cellular network generation and its maximum speed?

• 3G – 2 Mbps

• 4G – 100 Mbps

• 5G – 20 Gbps

• 6G – 50 Gbps

What is a major disadvantage of transferring data via satellite?

• Limited geographic coverage

• High latency due to the long distance the signal travels

• Low data transfer speed

• Lack of encryption

What is the primary difference between synchronous DSL (SDSL) and asynchronous DSL (ADSL)?

• SDSL offers the same upload and download speeds, while ADSL offers faster download speeds than upload speeds

• SDSL is faster than ADSL in both directions

• ADSL requires fiber optics, while SDSL uses copper lines

• SDSL is used for home networks, while ADSL is for businesses

What is a key difference between DSL and Cable technology?

• DSL uses coaxial cables, while Cable uses telephone lines

• Cable speeds are consistent, while DSL speeds depend on distance from the provider

• DSL speeds depend on the distance from the provider, while Cable shares bandwidth with neighbors

• DSL is generally faster than Cable

Which of the following is NOT a component of IPSec?

• Security Association (SA)

• Encapsulating Security Protocol (ESP)

• Authentication Header (AH)

• Simple Mail Transfer Protocol (SMTP)