Lesson 13 Networking Flashcards
What does OSI stand for?
Open Systems Interconnect
What company developed the OSI reference model?
International Standards Organization (ISO)
What protocol requires every packet to be transmitted?
TCP
What protocol is commonly used for streaming media?
UDP
What does UDP stand for?
User Datagram Protocol
Where high-level protocols such as SMTP and FTP operate in the TCP/IP model
Application Layer in TCP
TCP and UDP use this Layer
Transport
What is Layer 5 in the OSI model?
Session
IP addressing and routing takes place in this layer(TCP/IP)
Internet
What is the Port # for FTP
21
What is the Port # for SSH
22
What is the Port # for Telnet
23
What is the Port # for SMTP
25
What is the Port # for DNS
53
What is the Port # for HTTP
80
What is the Port # for POP3
110
What is the Port # for IMAP
143
What is the Port # for SLP
427
What is the Port # for HTTPS
443
What is the Port # for SMB
445,137-139
What is the Port # for AFP
548
What is the Port # for RDP
3389
What port is typically used for web browsing?
80
This protocol is allows clients to retrieve email from a mail server.
IMAP(Internet message access protocol)/SMTP/POP3
A decentralized naming system for computers
DNS
A cryptographic network protocol for operating network services securely over an unsecured network
(SSH) Secure Shell
What is RDP?
Remote Desktop Protocol
What is AFP?
AppleTalk Filing Protocol - file sharing protocol used in AppleTalk network
Large Corporations use this range of IPs
Class A - 1-126
What is the IP 127.0.0.1?
Loopback address
What headings do APIPA addresses start with?
169
What does APIPA mean?
Automatic Private IP addressing
how many bits is an IPv4 network?
32bit
how many bits is in an IPv6 address?
128bit
What are the two parts in an IPV4 address?
Network portion and host portion
How many available ports are there in total used by protocols?
65536
What is the best protocol to use when securely transferring large files?
SFTP
What can translate data between different operating systems, or email formats, or between totally different networks?
Gateway
Which OSI layer signals “all clear” by making sure the data segments are error free?
Transport Layer
How many devices can a Bluetooth device connect to simultaneously?
7
A device has an IPv6 address of 2001:0DB8:75a3:0214:0607:1234:aa10:ba01 /64. What is the host identifier of the device?
0607:1234:aa10:ba01
Which layer of the OSI model is responsible for logical addressing and routing?
network
When would a printer be considered a network host?
when it is connected to a switch
Which three layers of the OSI model map to the application layer of the TCP/IP model?
Application, Session, Presentation
Which two layers of the OSI model correspond to the functions of the TCP/IP model network access layer?
Physical, Data Link
What standard describes ethernet technology?
IEEE 802.3
Which IEEE standard operates at wireless frequencies in both the 5 GHz and 2.4 GHz ranges?
802.11n
Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?
switch
A type of fiber optic transmission that uses a single one way transmission.
Simplex i.e.the signal that is sent from a TV station to your home TV is an example of what type of transmission?
What standard describes Wireless LAN technology?
IEEE 802.11
What encryption protocol does IEEE 802.11i/WPA2 use?
AES ( Advanced encryption Standard) considered the strongest encryption protocol.
What are 2 non-RG coaxial cables?
thicknet(500m) and Thinnet(200m)
When both ends of a cable is wired in T568A it is often called what?
Straight-through cable(connects a network host to a device)
MMF &SMF is used in what type of cable?
Multimode & Single mode (fiber cables)
What type of fiber connector uses Simplex?
LC (Lucent Connector)
How many bits is an MAC address?
48
What command would you type in cmd prompt to display your IPv6 address?
ipconfig /all
How many hosts are in a class A network?
16 777 214
How many hosts are in a class C network?
254
What is CIDR?When is it used?
Classless Inter-Domain Router for subnetting
When DHCP fails to assign you an address what happens?
an APIPA address will be assigned to you.
169 address
What protocol is being used when you ping a server?
ICMP
What is LoS?
Line of Sight
This type of cloud computing is built to meet a specific need.
community cloud
This type of cloud is intended for a specific organization or entity such as the government
private cloud
This type of cloud is made up of two or more clouds connected via a single architecture
hybrid cloud
This type of cloud is made available to the general public
public cloud
This type of server stores frequently accessed web pages on the internal network
proxy server
A technician is investigating a report that a computer is unable to access network resources. The technician discovers that the computer has an IP address of 169.254.27.168. What is a logical first step in diagnosing this problem?
check the NIC LED lights
A technician uses the nbtstat -A 192.168.0.3 command. What does the technician expect to view in the command output?
current connections and statistics
Which Cloud computing service would be best for an organization that does not have the technical knowledge to host and maintain applications at their local site?
SaaS Software as a Service
Besides RDP what is another protocol that provides Remote Assistance?
Telnet
What is Super G technology?
increases a bandwidth of an 802.11 technology (doubling)
What command line would you use to find the ip address of www.npower.com?
nslookup
What command line is used to identify any problems in a particular path?
tracert