Network Fundamentals Q/A's Flashcards Preview

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Flashcards in Network Fundamentals Q/A's Deck (93)
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1

What's the purpose of routers?

route and distribute data packets

2

What's the purpose of switches?

store and forward data frames

3

What's two capabilities does a L2/L3 provide?

both routing and switching.

4

Next-generation firewalls provide what capabilities?

Deep Packet Inspection (DPI) Intrusion Prevention System (IPS) Web filtering (URL filtering) Antivirus Protection

5

What is an end-point, and what does it do?

where two nodes connect to each other for data transmission communicates back and forth with a network

6

What does a server enable you do to do?

manage compute and network resources for clients and hosts.

7

What is a Small office/home office (SOHO)?

small private network personal and business use.

8

What does the term On-Premise mean?

Onsite

9

What is the difference between single mode and multi mode fiber ?

Single Mode Allows only one mode of light to transmit over longer distances with the least attenuation. Multi Mode Allows multiple modes of light to transmit higher bandwidth over shorter distances

10

What is a Shared Media LAN?

Network that shares it's total available bandwidth

11

What is point-to-point?

One-to-One communication between two endpoints or nodes.

12

What is POE? What is used for?

Power over Ethernet transmit data and power over an Ethernet cable.

13

What are collisions on a network?

data packets that collide into each other

14

What are two common types of errors that occur a network?

physical or protocol related

15

What are mismatch duplex and or speed?

When either speed or duplex setting on either interface do not match

16

What's the difference between TCP (Transmission Control Protocol) vs UDP (User Datagram Protocol)? What is UDP commonly used for?

Reliable delivery protocol that uses a three way handshake of sequence numbers and acknowledgements with error correction and flow control.

Best-effort delivery without error correction or flow control Voice and video transmission)

17

Why is private address important?

Your network is private and not accessible by default from the outside network

18

2000::/3

Same as a Public IP address and is used for what type of communication?

IPv6 global unicast address

one to one communication

19

FC00::/7 (FD00::/8)

Like IPv4 private addresses and is called an IPv6...?

unique local address

20

FE80::/10

They are also assigned most often?

used for communicating with other nodes on the?

IPv6 link local addresses

autoconfiguration

same link

21

Anycast address are a one to anyone IP address that is sent to what?

closet member of the group.

22

FF00::/8

Represent a dynamic group of hosts and identifies multiple interfaces?

IPv6 multicast address

23

What the purpose of a IPv6 EUI-64 address used for?

automatically assign IPv6 host addresses to an interface.

24

What the purpose of encryption?

encoding of data for secure and private transmission

25

What is virtualization?

Creating a virtual replica of something into software

26

What two ways are MAC addresses learned?

Address resolution protocol Frame Flooding/Broadcast

27

What is Frame switching?

Divide and encapsulating data into frames

28

What is Frame Flooding?

Flooding all ports with a broadcast message except the port where it originated from.

29

What the purpose of a MAC address table?

Storing MAC address and port interfaces to forward data in/out physical interfaces

30

What is a passive interface responsible for?

Ignoring routing updates by still routing data