MTA Exam Prep Flashcards
What command shows you ping response times and also each hop a packet takes as it traverses a network?
Tracert.
Traceroute: Traceroute is a utility that records the route (the specific gateway computers at each hop) through the Internet between your computer and a specified destination computer. It also calculates and displays the amount of time each hop took. Traceroute is a handy tool both for understanding where problems are in the Internet network and for getting a detailed sense of the Internet itself.
Example with command prompt: tracert www.whatis.com
As packets traverses a network, each router is known as a…
Hop
Which of the following enables one to utilize a computer as if they were on a corporate network despite being on the internet and not in the office?
VPN
Virtual Private Network: is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or individual users with secure access to their organization’s network. A VPN ensures privacy through security procedures and tunneling protocols such as the Layer Two Tunneling Protocol ( L2TP ). Data is encrypted at the sending end and decrypted at the receiving end.
What type of server is used to translate host names to IPs?
DNS
Domain Name System: DNS is an abbreviation for Domain Name System, a system for naming computers and network services that is organized into a hierarchy of domains. DNS naming is used in TCP/IP networks, such as the Internet, to locate computers and services through user-friendly names. When a user enters a DNS name in an application, DNS services can resolve the name to other information associated with the name, such as an IP address.
What type of server does active directory run on?
Network Controller
List the 4 steps of a client acquiring an IP from a DHCP server:
Discovery
Offering
Request
Acknowledge
What command would you use to check to see which TCP/UDP connections are open/active?
Netstat
Definition: is a common command line TCP/IP networking utility available in most versions of Windows, Linux, UNIX and other operating systems. Netstat provides information and statistics about protocols in use and current TCP/IP network connections. (The name derives from the words network and statistics.)
In Europe, T1 is similar to
E1
T1: a high-speed data transmission line.
E1: European counterpart of the North American T1 line, which transmits at 1.544 Mbps, and E1 and T1 lines can be interconnected for international use. E2 through E5 lines provide multiple E1 channels.
What is the maximum number of host you can use for a class C subnet?
254
What is the min category cable used for 100Mbps?
CAT5
Short for Category 5, network cabling that consists of four twisted pairs of copper wire terminated by RJ45 connectors. Cat-5 cabling supports frequencies up to 100 MHz and speeds up to 1000 Mbps. It can be used for ATM, token ring, 1000Base-T, 100Base-T, and 10Base-Tnetworking.
Computers hooked up to LANs are connected using Cat-5 cables, so if you’re on a LAN, most likely the cable running out of the back of your PC is Category 5.
L2TP is used with what protocol for encrypting data?
IPSec
Internet Protocol Security: is a framework for a set of protocols for security at the network or packet processing layer of network communication.
What protocol would be appropriate for transferring/hosting video?
UDP
User Datagram Protocol: is an alternative communications protocol to Transmission Control Protocol (TCP) used primarily for establishing low-latency and loss tolerating connections between applications on the Internet. Both UDP and TCP run on top of the Internet Protocol (IP) and are sometimes referred to as UDP/IP or TCP/IP. Both protocols send short packets of data, called datagrams.
What routing protocol is most commonly used to determine best routes within a network and also utilizes a distance-vector routing algorithm?
RIP (routing information protocol)
Routing Information Protocol: is a widely-used protocol for managing router information within a self-contained network such as a corporate local area network (LAN) or an interconnected group of such LANs. RIP is classified by the Internet Engineering Task Force (IETF) as one of several internal gateway protocols (Interior Gateway Protocol).
What ports are defined above 49,152?
Dynamic
What port is DNS?
53
Why is x.25 no longer used?
It’s very slow ( look for a better reason )
What devices used as a high speed modem for a LAN?
CSU/DSU
This IPSec component has the highest security?
ESP
Encapsulating Security Payload: An Encapsulating Security Payload (ESP) is a protocol within the IPSec for providing authentication, integrity and confidentially of network packets data/payload in IPv4 and IPv6 networks. ESP provides message/payload encryption and the authentication of a payload and its origin within the IPSec protocol suite.
What layer of the OSI model is responsible for logging on and off?
Session
Definition: This layer establishes, manages and terminates connections between applications. The session layer sets up, coordinates, and terminates conversations, exchanges, and dialogues between the applications at each end. It deals with session and connection coordination.
Which of the following utilizes wires from a telephone company to provide internet access?
DSL
Max speed supported by 802.11b?
11Mbps
Multimode fiber is different from single mode fiber because…
It uses multiple beams of light.
Which layer of the OSI model is included in the TCP/IP model?
Physical
What command shows you the IP/default gateway of your NIC configuration?
ipconfig
Max speed supported by 802.11g
54Mbps
What type of device creates VLANS?
Layer 3 switch
What model is used to describe how data communication occurs between hosts/two computers?
OSI
What type of IP address is assigned by a DHCP server?
Dynamic
What port does L2TP use?
1701
- Uses TCP protocol
- VPN service
What command enables you to update the assigned DHCP configuration?
ipconfig/renew
-is executed to request a new IP address.
Why is UDP preferred over TCP for video?
Less overhead = Faster performance
When you assigned a 169.21.43.11 address, what could be the issue?
Not able to find DHCP server
What’s Aiesha favorite color/shade?
Black duh!
FNF Crew
What describes CSMA/CD?
802.3
Carrier Sense Multiple Access/Collision Avoidance: is a protocol for carrier transmission in 802.11 networks. Unlike CSMA/CD (Carrier Sense Multiple Access/Collision Detect) which deals with transmissions after a collision has occurred, CSMA/CA acts to prevent collisions before they happen.
Which VPN technology is the easiest to setup and most commonly used and had the least security?
PPTP
Point-to-Point Tunneling Protocol: is a method for implementing virtual private networks.
For a cross-over cable if one end is 568A the other end should be:
568B
Subnet mask of 255.255.240.0 is which of the following CIDR notations?
/20
What does TTL stand for?
Time
To
Live
A ____ is a single device or computer that connects to a TCP/IP network. (two answers)
Laptop
Node
What type if addresses 169.254.32.22?
APIPA
What encryption type is most secure?
WPA2
HTTP belongs to which port?
Port 80
Which device for malicious activity on a network and only reports it?
NIDS (network intrusion detection system)
What is the most common type of cable used today?
UTP
Unshielded Twisted Pair
Https belongs to which port?
443
What is an advantage of a single-mode fiber?
Lower lag time.
In optical fiber technology, single mode fiber is optical fiber that is designed for the transmission of a single ray or mode of light as a carrier and is used for long-distance signal transmission. For short distances, multimode fiber is used.
Single mode fiber has a much smaller core than multimode fiber.
Which would you use to block access to specific website?
Internet Content Filter
What layer includes cables and network adapters?
Physical
What model uses a centralized database for authentication?
Client/Server
Which protocol automatically assigns IP configurations to clients?
DHCP
Dynamic Host Configuration Protocol
What port is FTP?
20 & 21
What would you use to create VPN tunnels through Windows Server 2008 R2?
RRAS
Routing and Remote Access Service (RRAS) is a Microsoft API and server software that makes it possible to create applications to administer the routing and remote access service capabilities of the operating system, to function as a network router.
What layer of the OSI do MAC addresses and switches use?
Data Link
What layer of the OSI involves encrypting data?
Presentation
To test a cable you would use a…
Continuity Tester
What component of IPSec enables encryption and authentication?
SA (Security association)
What IPv4 class is used for multi-casting?
Class D
What type of firewall blocks packets based on port numbers that are closed ip addresses that are not allowed?
Packet Filter
What would be used to host / publish a webstore or a website for a company?
DMZ
This type of route never changes and must be defined on the router:
Well Known
What do you use to isolate a group of computers within our organization?
VLAN
Which area defines where the responsibility of a network admin ends and the telecommunications provider takes ownership?
Demarc
Port 53 is utilized for..
DNS
Which protocol is connectionless and has faster performance?
UDP
What type of authentication is used for enterprise network?
802.1x
What is the most common adapter or connector used to connect a computer to a wired network?
RJ45
Which of the following caches internet traffic for quicker access and also acts as the middleman?
Proxy Server
What is the most common central device used today to connect computers on a network?
Switch
What defines the nearest router for a host?
Default Gateway
is the node on the computer network that the network software uses when an IP address does not match any other routes in the routing table.
What type of address is used to send a single set of packets to multiple hosts?
Multicast
