What is ccna4?
Course Description: CCNA 4: Connecting Networks is the last of the four courses leading to the Cisco Certified Network Associate (CCNA) certification. This course discusses the WAN technologies and network services required by converged applications in a complex network.
Why is the MTU for a PPPoE DSL configuration reduced from 1500 bytes to 1492?
What is the approximate distance limitation for providing a satisfactory ADSL service from the central office to a customer? Why is the MTU for a PPPoE DSL configuration reduced from 1500 bytes to 1492? to accommodate the PPPoE headers. What is the function of the DSLAM in a broadband DSL network?
Which serial 0 0 0 interface state will be shown if no serial cable is attached to the router but everything else has been correctly configured and turned on?
The interface has been turned on by the use of the no shutdown command, otherwise the “Serial 0/0/0 is administratively down, line protocol is down” message would be displayed, whether a cable has been connected or not.
Which three pieces of information are typically recorded in a logical topology diagram?
There are two types of network topology diagrams: physical topology diagrams and logical topology diagrams. Logical topology diagrams show how devices are logically connected and how data moves through the network. Logical topology diagrams include information such as IP addresses, routing protocols, and static routes.
When a PPPoE configuration is being verified which command can be used to verify the MTU size and encapsulation type configured on a Cisco router?
When a PPPoE configuration is being verified, which command can be used to verify the MTU size and encapsulation type configured on a Cisco router? The show interface dialer 1 command will show the status of the dialer interface, the IP address negotiated, MTU , and encapsulation type.
How much total bandwidth is provided by a T1 line?
A T1 line can transmit data at a speed of 1.544 Mbps. Compared to standard telephone lines that used a modem to transfer voice and data at a mere 56 kbps, the T1 was an important step forward in delivering higher speed connections.
What two fields are available in IPv4 and IPv6 headers to mark packets QOS?
Answers Explanation & Hints: IPv4 uses an 8-bit Type of Service field to mark packets at Layer 3 and IPv6 uses an 8-bit Traffic Class field to mark packets at Layer 3.
What are two reasons to create a network baseline choose two?
A network baseline is created to provide a comparison point, at the time that the network is performing optimally, to whatever changes are implemented in the infrastructure. A baseline helps to keep track of the performance, to track the traffic patterns, and to monitor network behavior.
What are the two reasons a company would use a VPN?
3 Reasons Your Business Needs A VPN
- Remote Access. Your office has a network. On this network, you can access printers, connect to IT resources, transfer data, and more.
- Access Control. Access control, simply put, is controlling who gets access to what.
- Cybersecurity. A VPN is a great solution to secure your business data.
What is advantage offered by GRE tunnels?
The advantages of GRE are that it can be used to tunnel non-IP traffic over an IP network, allowing for network expansion by connecting multiprotocol subnetworks across a single-protocol backbone environment. GRE also supports IP multicast tunneling.