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Systems Infrastructure > Chapter 2 > Flashcards

Chapter 2 Flashcards

1
Q

What port does DNS use?

A

TCP/UDP port 53

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2
Q

What is the port number for FTP?

A

TCP port 20 and 21

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3
Q

What is the port number for HTTP?

A

TCP port 80

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4
Q

What is the port number for HTTPS

A

TCP port 443

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5
Q

What is the port number for IMAP?

A

TCP/UDP port 143

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6
Q

What is the port number for LDAP?

A

TCP port 389

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7
Q

What is the port number for POP3?

A

TCP port 110

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8
Q

What is the port number for SMTP?

A

TCP/UDP port 25

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9
Q

what is the port number for Telnet?

A

TCP/UDP port 23

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10
Q

What Command Prompt command views the IP address?

A

ipconfig

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11
Q

What is the function of the PING command?

A

Verifies connectivity between two computers by sending a packet and waiting for a reply.

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12
Q

What does the tracert command do?

A

Traces the route that a packet takes to a destination and displays the series of IP routers that were used.

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13
Q

What does the command pathping do?

A

Pathping traces the route through the network and provides a more detailed statistics on the individual hops.

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14
Q

What is an IP address?

A

A logical address and numerical label that is assigned to a device that is connected to a computer network.

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15
Q

What is NAT?

A

Network address translation allows multiple computers on a network to connect to the internet through a single IP address.

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16
Q

What are the range of private IP addresses?

A
  1. 10.0.0.0 - 10.255.255.255 /8
  2. 172.16.0.0 - 172.31.255 /12
  3. 169.254.0.0 - 169.254.255.255 /16 *
  4. 192.168.0.0 - 192.168.255.255 /16

* Reserved for APIPA

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17
Q

What is a Global unicast address?

A

Public addresses that are globally routable and reachable on the IPv6 portion of the internet.

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18
Q

Definition of Link local addresses

A

Private non-routable addresses confined to a single subnet. They are used by hosts when communicating with neighboring hosts on the same link.

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19
Q

What are unique local addresses?

A

Meant for private addressing, with the addition of being unique so that joining two subnets does not cause address collisions.

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20
Q

What is the role of Network and Sharing Center?

A

It provides real-time information about your network. Can be used to configure and manage network connections including wireless networks and the level of access.

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21
Q

What is the role of Network Discovery ?

A

It Allows this computer to see other network computers and devices and makes it visible to other network computers

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22
Q

What is the role of File and printer sharing?

A

It allows people on the network to access files and printers that you have shared on this computer.

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23
Q

What is the role of Public folder sharing?

A

It allows people on the network to access files in the public folder.

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24
Q

What is Media Streaming?

A

It lets people and devices on the network can acces pictures, music and videos on the computer.

25
Q

What is password protected sharing?

A

Only people who have a user account and password on the computer can access shared files, printers attached to the computer and the public folders.

26
Q

What are ports for?

A

A host uses ports to identify which packets belong to a network service or program.

27
Q

What is the difference between ipconfig and ipconfig/all?

A

Ipconfig displays the IP address, subnet mask and default gateway for all adapters whereas ipconfig/all displays the full TCP/IP configuration for all adapters including host name, DNS servers and the Physical/MAC Address.

28
Q

what does the command ipconfig/displaydns do?

A

This command displays the contents of the DNS client resolver cache which includes both entries pre-loaded from the local hosts file and any recently obtained resource records for name queries resolved by the computer.

29
Q

What does the command ipconfig.registerdns do?

A

It initiates manual dynamic registration for the DNS names and IP addresses that are configured at a computer.

30
Q

Most wired networks are _________ networks.

31
Q

A___is any device that connects directly to a network.

32
Q

A___is a logical address and numeric label that is assigned to a device connected to a compter network.

33
Q

A_____specifies which bits are network bits and which are host bits.

A

Subnet Mask

34
Q

what is the Range of the first Octet for Class A?

35
Q

What is the range of the First Octet for class B?

36
Q

What is the range of the First Octet for class C?

37
Q

What is the Default Subnet mask for Class A?

38
Q

What is the Default Subnet mask for Class B?

A

255.255.0.0

39
Q

What is the Default Subnet mask for Class C?

A

255.255.255.0

40
Q

What is the MMC?

A

An administrative tool to manage windows and many network services. You can customize the MMC with ‘snap-ins’, including many of the features in Administrative Tools.

41
Q

What is a default Gateway?

A

A default gateway is a device, usually a router which connects the local network to other networks.

42
Q

What is a DNS?

A

Short for Domain Name System, is a hierarchical client.server based distributed database management system that translates domain Host names to an IP address.

43
Q

What is WINS?

A

short for Windows internet name service. Another name resolution technology which translates from netBIOS to a specify a network resource. Since the growth of the internet and the scalability of DNS, WINS is considered a legacy system.

44
Q

what does the command Nslookup.exe do?

A

It is a command line administrative tool for testing and troubleshooting DNS name resolution.

45
Q

What is the Range of the first Octet for a class D address?

A

224.0.0.0-239.255.255.255

46
Q

What is a FQDN?

A

Stands for a fully qualified domain name. It describes the exact position of a host with the DNS hierarchy. Some examples of full names include www.microsoft.com

47
Q

What is TCP/IP?

A

It is a protocol suite that internet runs on.

48
Q

What is UTP?

A

Unshielded twisted-pair cabling.

49
Q

IPv4 networks are based on a _________ bit address

50
Q

IPv6 networks are based on a _________bit address

51
Q

What command is used to test network connectivity between two hosts?

52
Q

For your Windows 7 computer to be visible on the network by other clients, you will need to first enable

A

Network Discovery

53
Q

The_______is a device, usually a router, which connects the local network to other networks, allowing a host to communicate with other hosts on remote networks.

A

Default Gateway

54
Q

WPA/WPA2

A

Wi-Fi Protected Access

55
Q

IKEv2

A

Internet Key Exchange version 2. New in Win7/Win server 2008. Uses IPSec/SSL, supports VPN reconnect to re-establish broken connections, and doesn’t need certificates/preshared keys.

56
Q

CHAP/MS-CHAP v2

A

Challenge-response authentication that uses md5 hashing to encrypt the response. MS-CHAPv2 provides two-way authentication and is more secure.

57
Q

EAP-MS-CHAPv2

A

Universal authentication Framework for VPN. Meaning, it allows third party vendors to develop their own authentication schemes like smart cards and biometrics.

58
Q

What does a computer do when a native IPv6 network is not available?

A

It uses 6to4 or Teredo to send IPv4-encapsulated IPv6 traffic.

59
Q

What does a directaccess client require?

A

A global IPv6 address. Beginning with 2 or 3.

Systems Infrastructure (10 decks)

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