A router is a network layer equipment.

True or False?

A router must have at least 1 NIC card.

True or False?

False

A router must have at least 2 NIC cards.

RIP is an example of interior gateway routing protocols; OSPF is an example of exterior gateway routing protocols.

True or False?

False,

RIP is a Distance-Vector Routing Protocol,

OSPF is an example of an interior gateway routing protocol. 

Private IP addresses can be routed across the internet.

True or False?

False,

Private IP addresses need to be converted to public IP addresses before they can be routed across the internet. 

PAT allows a single public IP address to be shared by a number of computers.

True or False?

True,

PAT (port address translation), don't know why though :-P

In order for wireless devices to communicate with each other, a base station is required.

True or False?

False,

2 wireless devices can communicate via ad hoc, which does not require an AP or Base Station. 

The 2 authentication methods defined in WEP are: Open System Authentication, and Shared Key Authentication. 

True or False?

A wireless access point is a wireless router. 

True or False?

False,

A wireless access point can also be a bridge. 

Which of the following IP addresses is a public address?

A) 10.10.10.2

B) 31.20.3.1

C) 172.25.10.1

D) 192.168.3.1

B,

31.20.3.1

Given the following:

[image] 

Where would a packet with a destination address of 76.30.4.5 be sent?

A) To the default gateway on the interface WAN

B) To the 10.12.14.0/24 network on the interface LAN

C) To the 76.30.4.0/23 network on the interface WAN

D) Nowhere

C,

The keyword is, "where would a packet," meaning, "any" packet, be sent. Any packet (0.0.0.0) with any subnet mask (0.0.0.0) with a destination address of 76.30.4.5 will use the default gateway (which happens to be 76.30.4.(1, same subnet), on the WAN interface. 

[image]

Given the above routing table, where would a packet with a destination address of 76.30.4.0 be sent?

A) To the default gateway on the interface WAN

B) To the 10.12.14.0/24 network on the interface LAN

C) To the 76.30.4.0/23 network on the interface WAN

D) Nowhere

A,

To the default gateway on the interface WAN

When a router receives a data packet, it looks at ____ to make routing decisions.

A) The source MAC address in the packet header

B) The destination MAC address in the packet header

C) The source IP address in the packet header

D) The destination IP address in the packet header

D,

The destination IP address in the packet header

The TRACEROUTE utility is used for ____.

A) Showing the physical locaiton of the route between you and the destination.

B) Discovering information about the routers between you and the destination

C) Configuring routers remotely

D) Fixing the computer's local routing table

B,

Discovering information about the routers between you and the destination

Traceroute is based on which protocol

A) Ping

B) DNS

C) ICMP

D) WLAN

C,

ICMP

(Internet Control Message Protocol) 

Which parameter uniquely identifies a wireless network?

A) Node ID

B) MAC address

C) SSID

D) Subnet mask

C,

SSID

(Service Set Identifier)

Which of the following shows wireless encryption methods from the least secure to the most secure?

A) WEP, TKIP, AES

B) AES, TKIP, WEP

C) WEP, AES, TKIP

D) TKIP, AES, WEP

A,

WEP, TKIP, AES

A wireless LAN refers to which of the following

A) 802.3

B) 802.11

C) 802.15

D) 802.16

B,

802.11 is the wireless standard

The emerging standard for WPAN is the IEEE ____ standard.

A) 802.3

B) 802.5

C) 802.11

D) 802.15

D,

802.15 is the standard for WPAN

Which type of wireless LAN mode allows 2 or more devices to share recourses without the use of an access point?

A) Splitterless

B) Ad hoc

C) Point-to-point

D) Infrastructure

B,

ad hoc

What is the maximum data rate of the 802.11b standard?

A) 11mbps

B) 22mbps

C) 54mbps

D) 200mbps

A,

11mbps

WiMax is based on which of the following standards?

A) IEEE 802.11

B) IEEE 802.15

C) IEEE 802.16

C,

WiMax is classified as IEEE 802.16 (WMAN)

Your office currently runs a mix of 802.11b (2.4ghz) and 802.11g (2.4ghz) clients. Rumor has it that your company is about to merge with another comapny that uses a different wireless technology. Which of the following would be compatible with what your WLAN currently runs?

A) 802.11a

B) Bluetooth

C) 802.11n

D) None of the above 

C,

802.11N,

802.11n runs on the 2.4ghz frequency, so it's backwards compatible with the standards that run on that frequency (b and g clients). 

1) Limited Bandwidth

2) Easy to Hack

3) High Error Rate

4) Broadcast Transmission Issues

Based on the following traceroute result, answer questions:

[image]

What is the maximum round trip delay/time measured between the sending computer and the destination computer?

A) 48.568 ms

C) 48.716 ms 

A,

(it's line 15, near the IP address of the computer)

Based on this routing table, which link has the largest Delay?

[image]

A) The link between hop 1 and 2

B) The link between hop 6 and 7

C) The link between 14 and 15

B,

The link between hop 6 and 7