As mentioned, the common value of MTU in the internet is 1500 bytes. As you can see in the figure above, the MTU is built from payload (also referred as data) and the TCP and the IP header, 20 bytes each.
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When a router can’t determine a path to a message’s destination where does it send the message?
When a router can’t determine a path to a message’s destination, where does it send the message? Answer: C. Gateway of last resort 8.
Which two protocols manage neighbor discovery processes on IP v4 networks?
Which two protocols manage neighbor discovery processes on IPv4 networks? TCP and UDP BGP and OSPF ICMP and ARP IPv4 and IPv6
- Key Links. Pricing.
- Subjects. Medical & Nursing.
- Company. About Us.
- Find Us.
Which two fields in an Ethernet frame help synchronize device communications but are not counted toward the frame’s size?
In an Ethernet frame, the two fields are Preamble and SFD.
Which routing protocol does an exterior router use?
Exterior gateway protocols exchange routing information between autonomous systems. Examples include: Exterior Gateway Protocol (EGP) Border Gateway Protocol (BGP)
What kind of tool can you use to measure voltage on a cable length?
A clamp meter is an electrical test tool that combines a basic digital multimeter with a current sensor. Clamps measure current. Probes measure voltage.
What IPv4 protocol handles multicasting?
The main Multicast Group Membership Discovery protocols are Internet Group Management Protocol (IGMP) for IPv4 and Multicast Listener Discovery (MLD) for IPv6. A Multicast Routing Protocol is used to communicate between multicast routers and enables them to calculate the multicast distribution tree of receiving hosts.
How is latency measured and in what unit?
Latency is the time it takes for a packet to get across the network, from source to destination. It is measured in units of time — ms (millisecond, or 1/1,000 of a second). Following the road analogy, it’s how long it takes you to get to work. Longer is not better (assuming you like where you work).
What OSI layer does IP?
Layer 3
The Internet Layer of the TCP/IP model aligns with the Layer 3 (Network) layer of the OSI model. This is where IP addresses and routing live.
Which IP address is a private IP address?
And don’t be surprised if you have a device or two at home with a so-called 192 IP address, or a private IP address beginning with 192.168. This is the most common default private IP address format assigned to network routers around the globe.
Why rip is IGP protocol?
Interior Gateway Protocol (IGP) is a dynamic class routing protocol used by autonomous system routers running on TCP/IP hosts. IGP overcomes Routing Information Protocol (RIP) network limitations and supports multiple routing metrics, including delay, bandwidth, load and reliability.
Does IPv4 and IPv6 use the same packet format?
IP is an unreliable, connectionless protocol. IPv4 and IPv6 use the same packet format. As a network support technician, you only need to know how to support IPv6. On IPv4 networks, IGMP operates at the Network layer of the OSI model to manage multicasting.
What four functions do all routers perform?
What four functions do all routers perform? Connect dissimilar networks; interpret layers 3 and 4 addressing and other info; determine best path for data to follow; remote traffic if a primary path is down but another path is available.
What layer is OSPF?
Application Layer
OSPF and BGP belong to the Application Layer.
Which routing protocol is most commonly used?
OSPF
Among all the three chosen samples, OSPF is the most widely used routing protocol in large enterprise networks. OSPF is based on link-state technology by using SPF algorithm which calculates the shortest path.
What are the three classes of routing protocols?
There are mainly 3 different classes of routing protocols:
- Distance Vector Routing Protocol :
- Features –
- Disadvantages –
- Link State Routing Protocol :
- Features –
- Advantages –
- Advanced Distance vector routing protocol :
How far is a cable distance?
or cable length
a nautical unit of length equivalent to 720 feet (219 meters) in the U.S. Navy and 608 feet (185 meters) in the British Navy. Also called cable.
Why is it called multimeter?
The multimeter can make many tests, so it is often called “multitester”. When measuring resistance it acts as an ohmmeter, showing ohms. For volts it would be a Voltmeter.
Does Netflix use multicast?
Since multicast is so much more efficient than unicast, large companies like Netflix and Youtube must be using this to stream videos right?The only place where you might see multicast on the Internet is your local ISP. They typically use multicast for IPTV to deliver video to their own customers.
What is IGMP snooping in router?
IGMP snooping is the process of listening to Internet Group Management Protocol (IGMP) network traffic to control delivery of IP multicasts. Network switches with IGMP snooping listen in on the IGMP conversation between hosts and routers and maintain a map of which links need which IP multicast transmission.
Is IGMP multicast?
IGMP is a network layer protocol used to set up multicasting on networks that use the Internet Protocol version 4 (IPv4). Specifically, IGMP allows devices to join a multicasting group.