Answer the Following Questions About Networking Flashcards

C. Logical network diagram
The logical network diagram shows information about a network. This information contains details that tell users how domain names are assigned, which servers perform specific tasks, and how all network components communicate with each other, frequently taking into consideration security and reliability. Domain names andInternet protocol (IP) addresses give individual components their identification. A physical network diagram shows the physical connections of network components, while a logical network diagram shows how they relate and communicate with each other.
VLAN is a collection of nodes that are grouped together in a single broadcast domain that is based on something other than physical location.
VLANs can span multiple switches, and you can have more than one VLAN on each switch. For multiple VLANs on multiple switches to be able to communicate via a single link between the switches, you must use a process called trunking -- trunking is the technology that allows information from multiple VLANs to be carried over a single link between switches
You can create a VLAN using most switches simply by logging into the switch via Telnet and entering the parameters for the VLAN (name, domain and port assignments). After you have created the VLAN, any network segments connected to the assigned ports will become part of that VLAN.

C. Hardware firewal
Most Web filters use two main techniques to block content: Blacklists and keyword blocking. A blacklist is a list of Web sites that the Web filter's creators have designated as undesirable. Blacklists change over time, and most companies offer updated lists for free. Any attempt to visit a site on a blacklist fails. With keyword blocking, the software scans a Web page as the user tries to visit it. The program analyzes the page to see if it contains certain keywords. If the program determines the Web page isn't appropriate, it blocks access to the page.Another option for parents is to install a firewall. A computer firewall provides protection from dangerous or undesirable content. Firewalls can be software or hardware. They act as a barrier between the Internet and your computer network.

D. authentication

B. 1 and 6
Wireless routers can broadcast on several different channels, similar to the way radio stations use different channels. In the United States and Canada, these channels are 1, 6, and 11

C. DHCP client
When a DHCP-configured client (a computer or any other network-aware device) connects to a network, the DHCP client sends a broadcast query requesting necessary information from a DHCP server. The DHCP server manages a pool of IP addresses and information about client configuration parameters such as default gateway, domain name, the name servers, other servers such as time servers, and so forth. On receiving a valid request, the server assigns the computer an IP address, a lease (length of time the allocation is valid), and other IP configuration parameters, such as the subnet mask and the default gateway

D. EMI

D. Patch panel
A patch panel separates the hardwiring of your network from your networking equipment. Each run of cable that goes throughout the house or building is punched down on the back of the patch panel.

B. CAT5e
A. RG-6 is a coaxial cableC. Fiber is not twisted cablingD. RG-59 is also coaxial cabling

B. Ping sweep
A ping sweep (also known as an ICMP sweep) is a basic network scanning technique used to determine which of a range of IP addresses map to live hosts (computers). Whereas a singleping will tell you whether one specified host computer exists on the network, a ping sweep consists of ICMP (Internet Control Message Protocol) ECHO requests sent to multiple hosts. If a given address is live, it will return an ICMP ECHO reply. Ping sweeps are among the older and slower methods used to scan a network.There are a number of tools that can be used to do a ping sweep, such as fping, gping, andnmap for UNIX systems, and the Pinger software from Rhino9 and Ping Sweep from SolarWinds for Windows systems. Both Pinger and Ping Sweep send multiple packets at the same time and allow the user to resolve host names and save output to a file.To disable ping sweeps on a network, administrators can block ICMP ECHO requests from outside sources. However, ICMP TIMESTAMP and Address Mask Requests can be used in a similar manner

C. Implement and test the solution.

C. Netstat
netstat (network statistics) is a command-line tool that displays network connections (both incoming and outgoing), routing tables, and a number of network interface statistics. It is available on Unix, Unix-like, and Windows NT-based operating systems.It is used for finding problems in the network and to determine the amount of traffic on the network as a performance measurement

C. netstat
command-line tool netstat lists routing tables

C. Wireless router

D. Layer
In TCP/IP, the application layer contains all protocols and methods that fall into the realm of process-to-process communications across an Internet Protocol (IP) network. Application layer methods use the underlying transport layerprotocols to establish host-to-host connections.

• Remote login category
  • Telnet
• File transfer category
  • FTP
  • TFTP
• Electronic mail category
  • SMTP
  • IMAP
  • POP
• Support services category
  • DNS
  • RARP
  • BOOTP
  • SNMP
  • CMOT

C. BGP
The Exterior Gateway Protocol (EGP) is a now obsolete routing protocol for the Internet. BGP was created to replace the Exterior Gateway Protocol (EGP) protocol