Test 1 - NET 1002
What are the differences between Cisco's user EXEC and Privileged EXEC modes?
- User EXEC is a read only mode. - Privileged EXEC is a read, write, and modify mode.
What are the two primary means of assigning IPv4 addresses?
-Static (manually) -DHCP (automatically)
Under what circumstances are the different EXEC modes used?
-User EXEC is used to access commands for basic monitoring and is typically given to network operators. -Privileged EXEC allows access to all router commands to manage and configure. Global configuration, interface configuration, line configuration, and router engine modes are accessed from privileged EXEC mode. Typically given to the network administrator responsible for configuring and maintaining the network device.
Define Switch
A Layer 2 device that examines frames to determine where to forward the frame, connects end devices, and allows devices connected to the same network to exchange frames.
Define Router
A Layer 3 device that interconnects networks, moves data across networks, and acts as an exit/entry door for the network.
What intermediate device has been provided by your ISP for your home network?
A modem/router
How do you verify privileged mode access is secured?
A password is required to access privileged EXEC mode.
How do you verify console access is secured?
A password is required to access user EXEC mode.
Define Intranet
A private collection of LANs and WANs internal to an organization. (Accessible only to people authorized by the organization).
What software is used on your PC to send/receive data to the switch over the console line?
A terminal emulation software such as: Terra term or PuTTY
Define Internet
A worldwide collection of interconnected LANs and WANs
Define Extranet
An intranet that provides secure access to the network for individuals who need access to the data on the network.
Define CLI
Command Line Interface - connects a user to a computer program or operating system in order to interact with a system or application via commands.
Describe the role of a Switch
Connects various devices together on a single computer network (often referred to as bridging devices)
Describe the role of a Router
Creates and maintains a LAN and manages data entering, leaving, and inside the network.
Define DNS
Domain Name System - translates human readable domain names to machine readable IP addresses.
What does DHCP stand for?
Dynamic Host Configuration Protocol
What are the two types of devices you find on a network?
End devices and Intermediary Network Devices
How long does a device keep the same IPv4 address?
For the duration of the IPv4 address lease
What are two methods to manage a switch?
In-band Management and Out-of-band management
What is the purpose of the subnet mask?
Indicates which bits of the address are network and which bits are host bits.
What does ISP stand for?
Internet Service Provider
Where is startup-config stored and what does it store?
It is stored in NVRAM and it contains all the commands that will be used by the device upon startup or reboot.
Where is running-config stored and what does it store?
It is stored in RAM and it reflects the current running configuration. Configuration changes are immediately reflected in the running configuration.
What are the risks of leaving a Cisco switch at factory defaults?
Leaves the door wide open for anyone to take control of the switch.
Define LAN
Local Area Network - interconnected devices in a limited area.
What are the three media types over which data is transmitted?
Metal wire cables, fiber-optic cable, and wireless transmission
Does a layer 2 switch need an IP address to perform its functions?
No, an IP is only required for in-band management.
What type of cable is required to connect to a console port?
Roll over cable
What is the prompt for Privileged EXEC mode?
Switch#
What is the prompt for User EXEC mode?
Switch>
Define Out-of-band Management
The connection is via the console port, the network admin's computer device and switch must be physically collocated.
How do you save running config changes?
The copy running-config startup-config command must be executed
How does your device obtain its IPv4 addresses?
The network's DHCP server
How do you verify that all password stored are encrypted?
The output of show running-config or startup-config reveals no unencrypted passwords.
Define In-band Management
The switch's bandwidth is used to connect the network admin to the switch. The network admin needs the SSH or Telnet network application on their computer device to interact with the switch CLI.
How does the internet network provide fault tolerance?
Through packet switching.
What is the role of the default gateway?
To send packets to remote network.
What is ping used for?
To test connectivity
What is the role of the DNS?
To translate a domain name to an IP and vice-versa
Define WAN
Wide Area Network - a network infrastructure that spans a wide geographical area.
What does WISP stand for?
Wireless Internet Service Provider
Will a switch work right out of a box?
Yes
How do you verify connectivity between all devices?
ping
