Content Quiz 3

Question 1

What does an Ethernet switch use to make forwarding decisions

Answer 1

MAC address table

Question 2

Convert 0x0A into binary

Answer 2

00001010

Question 3

How are MAC addresses generally expressed?

Answer 3

12 Hex Values

Question 4

What is meant by Switch Learning?

Answer 4

The switch learns MAC addresses and associates them with Port numbers.

Question 5

What is the third section of the Ethernet frame and how big is it?

Answer 5

FCS, 4bytes

Question 6

What is the primary advantage of Store-and-Forward switching?

Answer 6

Error Checking

Question 7

Ethernet broadcast frames are sent to which switch ports?

Answer 7

All switch ports

Question 8

How many bits in a MAC address?

Answer 8

48

Question 9

If a destination MAC has an OUI of 01-00-5E-01-01-C9, what does this indicate?

Answer 9

It is a multicast frame

Question 10

What are the primary types of Frame Forwarding

Answer 10

Fragment free
Store and Forward
Fast forward

Question 11

What is the OUI?

Answer 11

Organizationally Unique Identifier

Question 12

What is the typical cut-through method of switching?

Answer 12

Fast forward

Question 13

If an Ethernet switch cannot find a match for the destination MAC address of a frame, what will it do?

Answer 13

Forward out all ports, except the incoming port

Question 14

How big is the OUI?

Answer 14

3 bytes

Question 15

Switch Learning is used to build what data structure?

Answer 15

Mac address table

Question 16

What are the Data Link Layer sublayers?

Answer 16

Mac
LLC

Question 17

Data Encapsulation at L2 includes which of the following?

Answer 17

Ethernet Error Detection
Ethernet Addressing
Ethernet Frame

Question 18

True or False:
A layer 2 Ethernet switch is totally unaware of the data being carried in the data portion of the frame.

Answer 18

True

Question 19

What is the first 8 byte section of the Ethernet frame called?

Answer 19

Preamble

Question 20

What is the second section of an ethernet frame?

Answer 20

Destination MAC

Question 21

What is the final section of an Ethernet frame and how big is it?

Answer 21

FCS, 4bytes

Question 22

An Ethernet broadcast frames use what destination MAC address?

Answer 22

FF-FF-FF-FF-FF-FF

Question 23

MAC addresses are divided into two sections. What are they?

Answer 23

OUI and Vendor Assigned

Question 24

IP does not worry about creating a connection to the destination before sending a packet. What is this called?

Answer 24

Connectionless

Question 25

How many bits in an IPv4 address?

Answer 25

32

Question 26

What command is used to shoe route sources on a Cisco router?

Answer 26

show ip route

Question 27

For a default gateway to serve a LAN, what must be true?

Answer 27

It must have an IP address in the LAN

Question 28

Directly Connected routes are?

Answer 28

Automatically added

Question 29

What is Fragmentation?

Answer 29

When L3 splits an IPV4 packet

Question 30

Best effort indicates that IP will not guarantee what?

Answer 30

Delivery of the packet

Question 31

What is the first byte of ALL IP headers?

Answer 31

Version

Question 32

What is TTL measured in?

Answer 32

Hops

Question 33

What does the Protocol section of an IPv4 Header Reference?

Answer 33

The layer 4 protocol of the packet

Question 34

What is the primary benefit of IPv6?

Answer 34

Increased address space

Question 35

What are the basic operations of the network layer?

Answer 35

Encapsulation Addressing end devices Routing De-encapsulation

Question 36

What are the limitations of IPv4?

Answer 36

Lack of end to end connectivity Complexity Address depletion

Question 37

What are the types of routes in a router's routing table?

Answer 37

Remote Default Route Directly Connected

Question 38

What is meant by the statement, "IP is unreliable"?

Answer 38

It cannot realign packet sequence It cannot fix corrupt packets I cannot retransmit

Question 39

Where can a host send packets?

Answer 39

Locally Itself Remote Addresses

Question 40

How many bits in an IPv6 address?

Answer 40

128

Question 41

Which address comes first in an IP header?

Answer 41

Source

Question 42

If the destination IP address is outside the LAN, what device is responsible for sending the packet to the gateway?

Answer 42

The host

Question 43

Remote Traffic is always forwarded where?

Answer 43

The default gateway

Question 44

What is the default route?

Answer 44

Where all unmatched traffic is forwarded

Question 45

What are the two versions of the Internet Protocol?

Answer 45

v4 and v6