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The 2 security methods used on network?
There are two types of network security concerns: network infrastructure security and content security. Securing a network infrastructure includes the physical securing of devices that provide network connectivity and preventing unauthorized access to the management software that resides on them. Content security refers to protecting the information contained within the packets being transmitted over the network and the information stored on network attached devices.
Explain each type of network devices with its function?
Computer network devices also known as communication devices and they constitute a data communication network. These devices are routers, switches, hubs, LAN cards, gateway, modems, hardware firewall, CSU/DSU, ISDN terminals and transceivers. In an Ethernet or WAN network, the data communication cannot be performed without these devices. Being an IT professional or a network administrator, you must have the good understanding of these devices.
What device is considered a layer 1 device?
A layer 1 device refers to hardware that operates at the physical layer of the OSI model, which is responsible for the transmission and reception of raw bit streams over a physical medium. Examples of layer 1 devices include cables (like Ethernet cables), network interface cards (NICs), and hubs. These devices do not interpret the data being transmitted; they simply facilitate the connection and transfer of signals between devices in a network.
How data can be transferred using wired and wireless methods?
This is assuming that there is no outside access to the Ethernet network such as a Internet connection. If there were then firewalls would be needed to prevent a outside intrusion of the network. In addition to physical access security, a wireless network requires authentication and encryption to prevent unauthorized devices from connecting to the wireless network or capturing and decoding the data that is being transferred via a wireless network connection. If the wireless network has outside WAN access then you would also need firewalls as with the Ethernet network.
Why can't you watch US TV shows online overseas?
The reason maybe, the network does not televised their shows beyond Us territories. Some you can but there may be copyright restrictions and other legal problems that prevent some shows being transmitted
When analyzing a protocol used on the network it is discovered that multicast messages are being sent to network devices Which class of ip addressing is being used to send these messages?
Class D
Does copyrights and patents protect personal information being transmitted over a network?
No; privacy law would be more involved with this.
What is the purpose of the Keepalive packet?
The Keepalive packet is used in network communications to maintain an active connection between two devices, ensuring that the link remains open even when no data is being transmitted. It periodically sends a signal to check the connection's status and prevent timeouts or disconnections due to inactivity. This mechanism is particularly useful in long-lived sessions, helping to identify and close stale connections efficiently.
What are nodes and packets?
Nodes are individual devices or points in a network where data can be created, received, or forwarded, such as computers, routers, and servers. Packets are small units of data transmitted over a network, which include not only the payload (the actual data being sent) but also metadata like the destination address and error-checking information. Together, nodes and packets facilitate communication and data transfer within a network.
What is one major advantage of using a direct print device?
Due to the data being transmitted at network speeds, network-direct printers provided the fastest performance printing solution.
Which protocol allows secure in-band management so that a network administrator can monitor and configure network devices without fear of any passwords being compromised?
SSH
What prevents the majority infections from spreading from mother to fetus?
Antibodies in the maternal blood prevent most infections from being transmitted to the fetus.
