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Attacks that involve intercepting network packets include Man-in-the-Middle (MitM) attacks, where an attacker eavesdrops on or alters communication between two parties. Packet sniffing is another method, often used to capture sensitive data such as passwords and credit card information from unencrypted traffic. Additionally, session hijacking can occur when an attacker intercepts and takes over a user's active session by capturing session tokens or cookies.
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What kinds of attacks involve intercepting and modifying network packets?
1) Man-in-the-middle 2) TCP/IP hijacking
Data is transmitted on a network in pieces called?
Packets Words
What device is used to protect one network from another by using filtering packets?
A firewall is the device used to protect one network from another by filtering packets. It monitors and controls incoming and outgoing network traffic based on predetermined security rules. Firewalls can be hardware-based, software-based, or a combination of both, and they help prevent unauthorized access and attacks on a network.
Does a firewall block ICMP packets?
A firewall can be configured to block ICMP packets, but it depends on the specific rules set by the network administrator. By default, many firewalls allow ICMP traffic for essential functions like ping and network diagnostics. However, to enhance security, some firewalls may restrict or block certain types of ICMP packets to prevent potential attacks or network scanning. Ultimately, whether ICMP packets are blocked or allowed is determined by the firewall's configuration.
What does IPsec use the Authentication Header to assure?
IPsec uses the Authentication Header (AH) to assure the integrity and authenticity of the data being transmitted over a network. It provides protection against replay attacks and ensures that the data has not been altered in transit by applying a cryptographic hash to the packet. While AH offers data integrity and authentication, it does not provide confidentiality, meaning the data remains visible to anyone intercepting the packets.
Which network migration technique encapsulates IPv6 packets inside IPv4 packets to carry them over IPv4 network infrastructures?
tunneling
Network information at the network layer of the OSI model is organized into?
Packets
What are the negative or adverse issues of network flooding?
network flooding can use up a lot of bandwidth. network flooding is often taken advantage of in ping floods or a denial of service attacks, causing the network to crash or at least the quality of service go down. also if you don't include a time to live count or have each node keep track of which packets have been forwarded, than there is a possibility that duplicate packets will circulate forever
What happens when the packets are too big?
When packets are too big for a network to handle, they may be fragmented into smaller packets for transmission. If fragmentation is not possible, the packets may be dropped, leading to data loss and requiring retransmission. This can result in increased latency and reduced overall network performance. Additionally, oversized packets can cause congestion and inefficiencies in network routing and processing.
Which network layer protocol is responsible for routing packets on the network?
The network layer is the layer that is responsible for routing packets on the network. This is the layer in which Internet protocol operates. In the seven layer OSI model, the network layer is the third layer from the bottom.
Which osi layer facilitates the routing of packets over an IP network?
Network
Why is it that when the load exceeds the network capacity delay tends to infinity?
As load exceeds network capacity, packets gets jammed at nodes. These packets never go forward unless load goes below network capacity. Hence when load exceeds network capacity delay tends to infinity. As load exceeds network capacity, packets gets jammed at nodes. These packets never go forward unless load goes below network capacity. Hence when load exceeds network capacity delay tends to infinity.
