Network Concepts2

Question 1

What is the most likely location of a virtual bridge

Answer 1

Virtual switch

Question 2

Network+ troubleshooting steps in order

I. E. T. E. I. V. D.
I eat tuna even if vomiting daily

Answer 2

1. Identify the problem
2. Establish a theory of probable cause
3. Test the theory of probable cause
4. Establish a plan of action to resolve the problem and identify potential effects
5. Implement the solution or escalate as necessary
6. Verify full system functionality
7. Document findings, actions and outcomes

Question 3

STP

Answer 3

The spanning tree protocol is used to eliminate traffic looping conditions

Question 4

What is the oldest distance vector routing protocol?

Answer 4

RIP

Question 5

SIP operates at the _______ layer of the OSI model?

Answer 5

Application layer. SIP is an acronym for session initiation protocol but operates at the application layer

Question 6

At what layer does compression take place?

Answer 6

Presentation

Question 7

Which common DNS record type will contain the pointer record to a canonical name?

Answer 7

PTR– pointer to DNS

Question 8

Which term best describes the capability of cloud computing to dynamically resize service and storage capacities?

Answer 8

Elastic

Question 9

3 common network protocols?

Answer 9

1. ARP–address resolution protocol. Resolve IP address to MAC
2. TCP–transmission control protocol. Connection oriented network communication
3. UDP–user datagram protocol. Connectionless network communication

Question 10

When in ___________mode, the vNIC access the network through the host adapters, it receives its own IP address, default gateway and net ask from DHCP a server.

Answer 10

Bridged

Question 11

What is the correct OSI layer for the traffic flow

Answer 11

Session layer. It establishes, manages and terminates communication sessions between presentation layer entitles.

Question 12

What is the correct OSI layer for voltage levels?

Answer 12

Physical

Question 13

Port 143?

Answer 13

IMAP4

Question 14

Port 20?

Answer 14

FTP (data)

Question 15

Port 161?

Answer 15

SNMP–simple network management protocol

Question 16

What character starts a comment line in a HOSTS file?

Answer 16

#

Question 17

To download files from a UNIX server which utility would you use?

Answer 17

FTP–File Transfer Protocol

Question 18

What transport layer protocol uses MD5-SHA-1 to secure SSL a communication?

Answer 18

TLS–was designed to standardize SSL. TLS provides a high level of network security. The two protocols are used in conjunction with each other.

Question 19

The distance vector best suited to WAN is _______.

Answer 19

bgp–routers using BGP are capable of finding the best paths for traffic with low administrative overhead.
Border Gateway Protocol

Question 20

EIGRP is considered a _________protocol

Enhanced interior gateway routing protocol

Answer 20

Hybrid–because it uses the characteristics of both link state and distance vector protocols.

Question 21

Tcp/ip layers

Answer 21

4. Application layer
5. Transport layer
6. Internet work layer
7. Network access

Question 22

What protocol supports multicasting ?

Answer 22

IGMP– allows one node to send data to a group of recipients and allows them to leave or join the session at will

Internet Group Management protocol

Question 23

The SNMP a protocol has two additional capabilities added since its inception. They are Get BulkRequest and Inform Request. Which revision was the first to implement these capabilities?

Answer 23

SNMPv2

Question 24

What is OSPF?

Answer 24

Open Shortest Path First–is a routing protocol and uses a reference bandwidth of 100 Mbps for cost calculation

Question 25

CIDR?

Answer 25

Classless interact-domain routing is a way of using ip addresses without following the original Classful standards of Class A, Class B, Class C.

Question 26

What provides networking services via the cloud?

Answer 26

NaaS–Network as a. Service