OSI Model
7 Layers of the OSI model
What is:
1. Physical
2. Data link
3.Network
4. Transport
5. Session
6. Application
7. Presentation
This occurs after establishing the theory in troubleshooting.
What is Testing the theory?
an attack that compromises the name resolution process.
What is DNS poisoning?
OW,O,GW,B,BW,G,BR,B
What is T568B?
Provides users with a graphical interface to connect to another computer over a network connection.
What is Port 3389 (Remote Desktop Protocol)
Starting from application layer to physical layer, the process of adding additional information when data is traveling in OSI or TCP/IP model.
What is the process of encapsulation?
Class C networks use a default subnet mask of...
What is 255.255.255.0?
a set of security procedures and technologies designed to restrict network access at an end user device level.
What is endpoint security?
(BLANK) machine performs a precise alignment between the two strands and then permanently joins them together.
What is a fusion splicer?
A document that outlines a set of rules to be followed by users or customers of computing resources.
What is Acceptable Use Policy (AUP)?
ability to preform static and dynamic routing. It can both switch and route packets based on source and destination addresses, allowing devices to communicate inside and outside the network
What is a layer 3 switch?
A technician is assisting a user who cannot connect to a network resource. The technician first checks for a link light according to troubleshooting methodology, this is an example of...
What is Question the Obvious?
A real-time analysis of either network traffic or system and application logs. It raises an alert and can log activity when it detects suspicious activity.
What is intrusion detection system (IDS)
a small-form-factor duplex connector with a snap-in design used for multimode networks.
What is Mechanical Transfer Registered Jack (MTRJ)?
A protocol that computer systems use to send event data logs to a central location for storage.
What is Port 514 (Syslog)?
An administrator is configuring a firewall at the Session layer of the OSI model. The kind of firewall the administrator is implementing is...
What is stateful inspection firewall?
a command-line utility provided by many Linux distributions that allow administrators to edit the rules enforced by the Linux kernel firewall.
What is iptables?
This process watches for incoming IP address-assignment requests from unknown MAC addresses.
What is DHCP Snooping?
A network administrator who needs to add an additional connection to a room. He adds a new Ethernet switch and must now connect it to an existing switch. What type of cable should he use to connect the two switches?
What is a crossover cable?
A networking protocol that authorizes and authenticates users who access a remote network
What is Radius (Port 1812/13)?
A company is using VoIP phones. What network performance optimization method would a technician, use in this situation?
QoS (Quality of Service)
There is a broadcast storm using much of the network bandwidth. A network technician needs to determine the MAC address of a device that is generating the storm. What tool will provide the needed information?
What is a network sniffer?
This maintains the LEAST administrative effort...
What is Least Privilege?
A business is using the local cable company to provide Internet access. Which type of cabling will the cable company MOST likely use from the demarcation point back to the central office?
What is a RG-6 coax cable?
A computer networking protocol that provides for automatic assignment of available Internet Protocol (IP) routers to participating hosts
What is VRRP, Virtual Router Redundancy Protocol?