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comptia > comptia network > Flashcards

comptia network Flashcards

1
Q

Which of the following protocols runs on TCP port 445?

A

SMB/CIFS

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2
Q

LDAP port

A

TCP port 389

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3
Q

SIP (Session Initiation Protocol) ports

A

-TCP port 5060
-TCP port 5061

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4
Q

A network technician uses Remote Desktop Protocol (RDP) client on their Windows OS to remotely troubleshoot a problem on another Windows machine. Which of the following ports needs to be opened for the built-in Windows RDP server to allow this type of network connection?

A

TCP port 3389

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5
Q

A network administrator wants to secure the existing access to a directory service with SSL/TLS encryption. Which of the following TCP ports needs to be opened to implement this change?

A

636

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6
Q

An SNMP Agent receives requests on UDP port:

A

161

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7
Q

An SNMP management station receives SNMP notifications from Agents on UDP port:

A

162

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8
Q

IMAP (Internet Message Access Protocol) port

A

162

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9
Q

IMAP (Internet Message Access Protocol) port

A

TCP port 143

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10
Q

Which of the following ports is used by syslog?

A

514

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11
Q

HTTPS port

A

TCP port 443

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12
Q

NTP (Network Time Protocol) UDP port:

A

123

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13
Q

Post Office Protocol v3 (POP3) uses:

A

TCP port 110

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14
Q

HTTP (Hypertext Transfer Protocol) port

A

TCP port 80

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15
Q

SMTP TLS

A

587

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16
Q

What are the characteristic features of the secure version of IMAP?

A

-SSL (Secure Sockets Layer)
-TCP port 993
-TLS (Transport Layer Security)

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17
Q

refers to the POP3S encrypted communication:

A

-SSL (Security Sockets Layer)
-TCP port 995
-TLS (Transport Layer Security)

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18
Q

SQL (Microsoft Structured Query Language)

A

1433

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19
Q

SQLnet

A

1521

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20
Q

MySQL database system

A

3306

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21
Q

Which port enables the FTP’s Data Connection for sending file data?

A

TCP port 20

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22
Q

The FTP’s Control Connection for administering a session is established through:

A

TCP port 21

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23
Q

SSH protocol runs on:

A

TCP port 22

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24
Q

Secure File Transfer Protocol (SFTP) is an extension to the Secure Shell (SSH) protocol and runs on:

A

TCP port 22

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25
Q

Telnet

A

23

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26
Q

SMTP

A

TCP port 25

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27
Q

DNS (Domain Name System)

A

53

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28
Q

DHCP (Dynamic Host Configuration Protocol

A

-UDP port 67
-UDP port 68

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29
Q

TFTP

A

UDP port 69

30
Q

function of the link local address of IPv6 (fe80::10)

A

they are used for the local access on a network and are unrouteable

31
Q

SMB (server message block)

A

network protocol used for file and printer sharing among devices

32
Q

characteristics of the core layer in a three tiered networking model

A

it is designed for high availability and focuses on routing and switching of the entire network

33
Q

key function of a primary DNS server

A

it hosts a domains zone file

[when the primary zone is hosted on the DNS server, the DNS server is considered the primary DNS server for that particular zone]

34
Q

IaaS model of cloud computing

A

(Infrastructure as a Service) allows customers to use the providers infrastructure of compute, network, and storage

35
Q

what is the difference between Dynamic Network Address Translation (DNAT) and static NAT?

A

DNAT dynamically maps an IP address from a pool to the inside local IP address

36
Q

Local Connector (LC)

A

resembles an RJ- style connector, is small in size, and is commonly found on MMF and SMF optic cables

36
Q

what does the Start of Authority (SOA) record in a DNS zone do?

A

it keeps records up to date on the secondary DNS servers

37
Q

what does a spine-leaf network architecture restrict in terms of direct connections

A

-the spine switches cannot be directly connected to one another
-the leaf switches cannot be directly connected to one another
-hosts (servers) cannot be directly connected to the spine

38
Q

what is the primary benefit of utilizing SMTP TLS

A

(Simple Mail Transfer Protocol) operating over (Transport Layer Security) ensures that all mail is encrypted in transit

39
Q

define (SaaS) Software as a Service in the context of cloud computing

A

it is any application that you use but do not own or maintain, provided and maintained by the service provider on its cloud

40
Q

what is the IEEE definition of 10GbaseLR

A

it is defined by IEEE as 802.3ae and uses single mode fiber with a maximum distance of 10 kilometers

41
Q

what does Encapsulating Security Payload (ESP) in the IPSec protocol suit do?

A

EPS encrypts the payload using either a shared key or a private and public keypair

42
Q

which protocol is responsible for the Neighbor Discover Protocol (NDP) in IPv6?

A

ICMP in IPv6 is responsible for the Neighbor Discovery Protocol (NDP), which is the equivalent of the Address Resolution Protocol (ARP) in IPv4.

43
Q

primary function of a 66 block in a telephone system

A

to supply a plain old telephone service (POTS) line access to a business or apartment building

44
Q

define (DWDM)

A

Dense Wavelength Division Multiplexing (DWDM) uses narrower chunks of light wave space to pack as much data in the bandwidth of the glass

45
Q

what is the specification that broadband cable operates on called?

A

DOCIS (Data Over Cable Service Interface Specification, enables high bandwidth data transfer to an existing cable TV (CATV) system

46
Q

notation CIDR representation in network and its relation to IPv4 and IPv6

A

CIDR notation is a way of writing out the network mask by counting the number of bits and using them to the denote subnet masks in both IPv4 and IPv6

47
Q

UNICAST

A

one to one communication

48
Q

community cloud model

A

singular infrastructure shared by a group of organizations with specific requirements

49
Q

copper connectors

A

easy diagnostic point when connectivity is the suspected problem

50
Q

virtual NIC

A

a software that emulates physical hardware

51
Q

DHCP process for a client

A

DORA (discover, offer, request, acknowledge)

52
Q

What is “peer” in peer to peer networking

A

a network node that can function as both a client and server simultaneously

53
Q

TCP

A

transport protocol for TCP/IP, connection-oriented, sequenced, and acknowledged

54
Q

typical speeds of iSCI

A

1 Gbps to 40 Gbps

55
Q

what is the primary benefit of Desktop as a Service (DaaS) in terms of security?

A

it allows for data processing in the cloud

56
Q

what does “transceiver is unidirectional” mean

A

it only transmits data in one direction on the side of the connection

57
Q

what is the functionality of HTTP and on which TCP port does it operate

A

HTTP is an application protocol for web data communication and operates on TCP port 80

58
Q

what is the primary purpose of HTTP and Transport Layer Security (TLS)

A

encrypting data transfers via Secure Sockets Layer

59
Q

what is the key consideration for placing recourses in Campus Area Network (CAN)

A

closest to the majority of users

59
Q

the role of IP in data transmission

A

The IP protocol is responsible for encapsulating protocols such as UDP, TCP, and delivering the data to the appropriate addresses

60
Q

what is the main difference between the 3 tiered networking model and the Collapsed core model

A

the Collapsed core model merges the core and distributed layer onto the same piece of switching equipment

61
Q

what function does a forwarding/caching DNS server primarily server

A

it forwards DNS requests to another server and caches the answers

62
Q

what is a dual-stack router or host in networking

A

a host or router that runs both IPv4 and IPv6 network stacks simultaneously

63
Q
A
63
Q

what is the purpose of a Router Solicitation (RS) request in an IPv6 network

A

to solicit a Router Advertisement (RA) from the network routers

64
Q
A
65
Q
A
66
Q
A
67
Q
A

comptia (1 decks)

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