Super Session ICT169

The DNS protocol is

• 
  used to resolve an IP address when the host name is known

• used for mapping IP addresses to MAC addresses

• 
  used for translating between IPv4 and IPv6

• used to resolve the network default gateway when the IP address is known

What best describes a peering relationship between two Internet Service Providers (ISPs)

ISP A and ISP B.

• ISP A and ISP B exchange each others traffic freely without any payments involved.

• 
  ISP A pays ISP B for the transport of data, but ISP B does not pay ISP A for the transport of data.

• 
  ISP A and ISP B run a peer-to-peer file exchange protocol between them.

• 
  ISP B pays ISP A for the transport of data, but ISP A does not pay ISP B for the transport of data.

In Australia 802.11b/g Wi-Fi uses 11 different channels. If you're setting up three different WLANs in close proximity (no other existing WLANs in the area), which are the three channels you should choose to minimise the interference between the three WLANs?

• 1, 6 and 11.

• 9, 10 and 11.

• 7,9 and 11.

• 1, 2 and 3.

• 1, 4 and 6.

How many Megabytes can be transferred per second by a 1 Gigabits/s link?

Mathematical Equivalence

ON

Which of the following statements describes the characteristics of a link-state routing protocol?

(Choose two.)

• 
  routers build a map of the entire network

• routers must be manually configured with routing information

• updates occur when the topology changes

• 
  routers exchange entire routing tables with neighbours

• updates occur periodically

You have been provided with the 132.145.0.0/24 address space. You have a very simple network. You have one point-to-point link (2 hosts) and one internal subnet with 37 hosts. Subnet accordingly. (YOU HAVE 3 MINS)

What is the network address of the internal subnet (do not include subnet mask) ​ (a)   ​ ​

What is the subnet mask of the internal subnet in dotted decimal format​ (b)  

What is the subnet mask of the internal subnet in slash format​ (c)  

What is the network address of the point-to-point link (do not include subnet mask)​ (d)  

What is the subnet mask of the point-to-point link in dotted decimal format​ (e)  

• 132.145.0.0
• 255.255.255.192
• /26
• 132.145.0.64
• 255.255.255.252
• /25
• 132.145.0.1
• 255.255.255.240
• 255.255.255.250
• 132.145.1.64

Which hosts will receive an ARP request?

• Only the host to which the request is addressed.

• All hosts in the collision domain.

• All hosts connected to the LAN.

• All hosts in the broadcast domain.

Match the following descriptions with types of malicious software

Rootkit​ (a)  

Worm​ (b)  

Virus​ ​ (c)  

• Enables highly privileged access to a system
• Standalone software that replicates itself
• Attaches itself to an application or file
• software update released by manufacturers
• helps organize and protect electrical wiring
• is a gardening simulation program

Map the following technologies to OSI layers.

• Network Layer

• WiFi IEEE 802.11

  Answer 4

• Application Layer

• UDP

• Physical and Data Link Layer

• IP

• Transport Layer

• DNS

You are designing a network that needs to support 384 users.

Which subnet mask would best meet your needs? (Only use dotted decimal notation)