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CompTIA Network + > Section 8 - Routing > Flashcards

Section 8 - Routing Flashcards

1
Q

The first __ port numbers are considered to be “well-known” ports.

A

1024

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2
Q

True/False:

Ephemeral port numbers are considered to be anything above the “well-known” ports.

A

True

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3
Q

__ translates internal IP addresses to an Internet address and tracks the packets.

A) SNAT
B) DNAT
C) PAT

A

C) PAT

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4
Q

__ sends specific traffic to one internal IP address.

A) SNAT
B) DNAT
C) PAT

A

A) SNAT

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5
Q

__ has a limited pool of Internet addresses to give to a number of internal devices.

A) SNAT
B) DNAT
C) PAT

A

B) DNAT

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6
Q

Which type of router ships with NAT enabled by default: SOHO or Enterprise?

A

SOHO routers

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7
Q

Port __ allows external devices to have direct internal communication through a router.

A

Port forwarding

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8
Q

Port __ will open an alternative assigned port when the initial port is contacted (e.g.,FTP).

A

Port triggering

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9
Q

What hardware will often have a Web-based interface?

A

SOHO routers

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10
Q

What hardware will typically have its own OS interface?

A

Enterprise router

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11
Q

Provide the command(s) that displays current known routes from the routing table.

A

route print

netstat -r

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12
Q

Routing Tables contain address information regarding destination, __, __, and __.

A

Destination, subnet mask, gateway, and NIC.

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13
Q

True/False:

Dynamic routing protocols use metrics to determine routes and are either RIP1 or RIP2.

A

False; dynamic routing protocols use metrics to determine routes and are either Distance Vector or Link State.

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14
Q

True/False:

Dynamic routing protocols are either IGP or EGT.

A

False; Dynamic routing protocols are either IGP or EGP.

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15
Q

BGP is the __ protocol used for Inter-Autonomous System routing.

A) IGP
B) EGP

A

B) EGP

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16
Q

RIP is a __ __ protocol that uses hop count to determine routes.

A) Link State
B) Distance Vector

A

B) Distance Vector

17
Q

RIP’s maximum hop count is __ hops.

A) 10
B) 15
C) 22
D) 67

A

B) 15

18
Q

Which connection-type of dynamic routing protocol does OSPF use and which routing protocol group is it apart of?

A

Link State Protocol

IGP

19
Q

Which connection-type of dynamic routing protocol does BGP use?

A

It’s a hybrid protocol, so it uses Link State and Distance Vector.

20
Q

A __ is a box that connects network ID’s and contains at least two connections (resolves MAC addresses using IP addresses).

A

Router

21
Q

What could we deduce if the Default Gateway is set to all 0’s from the information included in a Routing Table?

refer to table if necessary

A

We could establish that piece of hardware is connected to the local network and can be ARPed.

22
Q

What does the Metric column tell us?

A

If there are two or more routing paths that the router could take, choose the path with the lowest Metric value (i.e., path A = 10, path B = 100: take path A).

23
Q

Looking at a Routing Table, provide an example of input data that we would see for a Default Route.

A 
Address - 0.0.0.0
Subnet - 0.0.0.0
Gateway - xxx.xxx.xxx.xxx
Interface - xxx.xxx.xxx.xxx
Metric - any
24
Q

What is NAT and what does it stand for?

A

Network Address Translation; replaces the source IP address with its own IP address; allows us to have a lot of devices on the internet without using up all IP addresses in the world (a.k.a., Port Address Translation).

25
Q

When might someone use Port Forwarding?

A

When playing games or downloading torrents, for example to direct internet communication directly to a device or devices using port numbers while passing through a router and/or firewall.

26
Q

When might someone use Port Triggering?

A

When sending email, for example to temporarily open up a different port number to then receive communication back, hence triggering.

27
Q

What does DMZ stand for and what is its purpose?

A

Demilitarized Zone; used to open all ports to the outside network.

28
Q

What is Convergence?

A) the number of intermediate network devices through which data must pass between source and destination
B) all router tables reflect all routes.

A

B) all router tables reflect all routes.

29
Q

What is Hop Count?

A) the number of intermediate network devices through which data must pass between source and destination.
B) all router tables reflect all routes.

A

A) the number of intermediate network devices through which data must pass between source and destination.

30
Q

Which of these is not an influence of Dynamic Routing?

A) Bandwidth
B) MTU
C) Latency
D) Area ID
E) Cost
A

D) Area ID

31
Q

IGP is to __ and __ whereas EGP is to __.

A

IGP is to RIP and OSPF whereas EGP is to BGP.

CompTIA Network + (22 decks)

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