General IT/Cisco Knowledge
Makes it possible for users to be free to use their personal devices to access a corporate or a campus network
BYOD
What is the default VLAN number in a switch?
Vlan 1 or 1
A router that is responsible for redirecting the packets it receives to their destination
Default-gateway
Logical Address, Path Selection, Routing
Network Layer
A network that provides safe and secure access to an organization's data to authorized people who work outside that organization.
Extranet
A networking device that forwards data packets between computer networks
Router
a group of devices on one or more LANs that are configured to communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments.
VLAN
A form of message delivery in which a message is delivered to a single destination
Unicast
Encryption, Format, Compression
Presentation Layer
Process of inserting a formatted message inside another formatted message
Encapsulation
Command to check the path that a packet takes to reach a destination
Traceroute
Windows command that shows the IP configuration settings on a PC
ipconfig
Window for user, Access Network Services, File Services
Application Layer
A physical port of a Cisco device that provides access to the device via a dedicated management channel, also known as out-of-band access
Console
File that is stored in NVRAM and that contains the configuration that has been saved on a device to be used upon startup or reboot
Startup-config
File that is stored in RAM and that contains the configuration that is being done on a device
Running-config
Segmentation, Reassemble Data, Virtual Circuits, Flow control, Sequencing
Transport Layer
A network characteristic that restricts the impact of a failure on network access and allows a network to recover quickly from the failure
Fault tolerance
What cable is used to connect router to switch?
Straight-through Cable or Straight-through
A user-friendly interface that provides an interaction between a user and an OS through a graphical environment
GUI or Graphical User Interface
2 sub layers of Data Link
Logical Link Control (LLC) and Media Access Control (MAC)