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If the IP header is 20 bytes how big is the TCP segment encapsulated by this header?

The size of a TCP segment encapsulated by an IP header does not have a fixed size and can vary based on the data being transmitted. However, the maximum size of a TCP segment is typically constrained by the Maximum Transmission Unit (MTU) of the network, which is commonly around 1500 bytes for Ethernet. Given that the IP header is 20 bytes, the maximum TCP segment size would be approximately 1480 bytes if there are no additional headers or options. In practice, the exact size would depend on the TCP header size and any options included.


As a memory segment is 64k does it mean that 64k are the total addresses in a segment if 64K is the total addresses in a segment then what is the sizebytes of one segment 64k?

Yes, if a memory segment is 64K, it means there are 64K total addresses in that segment. Since 1K (kilobyte) equals 1024 bytes, a 64K segment would have a total size of 64 * 1024 bytes, which equals 65,536 bytes. Therefore, the size of one segment is 65,536 bytes.


What is the maximum permittable size in bits for an IPv4 packet?

The maximum permissible size for an IPv4 packet is 65,535 bytes, which includes both the header and the data payload. Since the maximum size of the header is 60 bytes, this allows for a maximum data payload of 65,475 bytes. However, in practical use, the Maximum Transmission Unit (MTU) often limits the size of packets on networks, typically to 1,500 bytes for Ethernet.


What is the maximum and minimum size of a UDP datagram?

maximum size is 512 bytes without header


What is the maximum number of bytes that is allowed in a standard IEEE 802.3 Ethernet frame?

Totally depends on the hardware and software and their MTU (Maximum Transmission Unit). Usually MTU is set to 1500 bytes.


What is the minimum and maximum size of an Ethernet frame?

The minimum size of an Ethernet frame is 64 bytes. Even if the VLAN tag is 4 bytes, the Ethernet frame with VLAN tagging remains 64 bytes.


What is the maximum size of varchar in db2?

32767 bytes


What is The header of an IPv4?

Header is always a multiple of 4bytes and so we can have a maximum length of the field as 15, so maximum size of the header is 60 bytes out of which 20 bytes are mandatory.


What is the minimum maximum size of ICMP packet?

The minimum size of an ICMP packet is 8 bytes, which includes the 8-byte ICMP header without any additional data. The maximum size of an ICMP packet is 65,535 bytes, which includes the maximum payload that can be carried within an IPv4 packet.


Maximum value of an unsigned integer is how many bytes?

Type size of an unsigned integer is compiler specific. Most compilers will provide 4 bytes, but the size can range from 2 to 8, or (again) whatever the implementation provides. Note: 1. Maximum value: UINT_MAX (in limits.h) 2. Size in bytes: sizeof (unsigned)


What is the size of an Ethernet frame carrying an APR packet?

An Ethernet frame typically has a maximum payload size of 1500 bytes, which includes the APR (Address Resolution Protocol) packet. The APR packet itself is relatively small, usually around 28 bytes, allowing the Ethernet frame to accommodate additional headers and trailers, such as the Ethernet header (14 bytes) and the Frame Check Sequence (4 bytes). Therefore, the total size of an Ethernet frame carrying an APR packet would be at least 64 bytes (minimum frame size) up to 1518 bytes (maximum frame size).


What is the maximum size of data that the application layer can pass on to the TCP layer below?

2^16 bytes - size of TCP header