answers - Cs.princeton.edu
... C. Persistent HTTP shows the greatest performance advantage over nonpersistent HTTP when downloading a page with large objects. D. When the server has finished sending data for all objects referenced by the initially requested page, the server closes the connection. For this question, we also marked ...
... C. Persistent HTTP shows the greatest performance advantage over nonpersistent HTTP when downloading a page with large objects. D. When the server has finished sending data for all objects referenced by the initially requested page, the server closes the connection. For this question, we also marked ...
NAME: Computer Science 461 Midterm Exam March 30, 2009
... C. Persistent HTTP shows the greatest performance advantage over nonpersistent HTTP when downloading a page with large objects. D. When the server has finished sending data for all objects referenced by the initially requested page, the server closes the connection. For this question, we also marked ...
... C. Persistent HTTP shows the greatest performance advantage over nonpersistent HTTP when downloading a page with large objects. D. When the server has finished sending data for all objects referenced by the initially requested page, the server closes the connection. For this question, we also marked ...
The Network Layer
... b) PRI: priority field defines priority of packets w.r.t. traffic congestion; 0-7: for packets that can slow down in event of congestion; 8-15 for real-time traffic with constant sending rate – Audio & Video. c) Flow label: (~ Service in IPv4) Special handling for a particular flow of data; pseudo-c ...
... b) PRI: priority field defines priority of packets w.r.t. traffic congestion; 0-7: for packets that can slow down in event of congestion; 8-15 for real-time traffic with constant sending rate – Audio & Video. c) Flow label: (~ Service in IPv4) Special handling for a particular flow of data; pseudo-c ...
Lecture 9: Communication Security
... Probably the main threat comes from malicious software on user PCs. This is not a fault of the TLS protocol of course. Malicious software, such as trojan horses, can infect user PCs in many ways. If an operating system has such software installed then it can directly attack the implementation. For e ...
... Probably the main threat comes from malicious software on user PCs. This is not a fault of the TLS protocol of course. Malicious software, such as trojan horses, can infect user PCs in many ways. If an operating system has such software installed then it can directly attack the implementation. For e ...
ppt
... Client/Server Communication The client (process) • Runs on a desktop • Makes requests for services • Executes a portion of the application code The server (process) • Executes a set of functionally related services • Never initiates a message exchange with a client • Implements a queue to hold clie ...
... Client/Server Communication The client (process) • Runs on a desktop • Makes requests for services • Executes a portion of the application code The server (process) • Executes a set of functionally related services • Never initiates a message exchange with a client • Implements a queue to hold clie ...
ppt - Carnegie Mellon School of Computer Science
... But browsers often open parallel TCP connections to fetch referenced objects Persistent HTTP Server leaves connection open after sending response Subsequent HTTP messages between same client/server are sent over connection ...
... But browsers often open parallel TCP connections to fetch referenced objects Persistent HTTP Server leaves connection open after sending response Subsequent HTTP messages between same client/server are sent over connection ...
Diapositive 1
... Protocols encode and decode data type values differently • String • First 2 bytes – length, then string byte values • String byte values terminated by a null 0x00 ...
... Protocols encode and decode data type values differently • String • First 2 bytes – length, then string byte values • String byte values terminated by a null 0x00 ...
Architecture & Implementation
... • General comment: each layer looks only at its corresponding header (here packet header) • Routing is different on virtual circuit networks than on datagram networks ...
... • General comment: each layer looks only at its corresponding header (here packet header) • Routing is different on virtual circuit networks than on datagram networks ...
Part I: Introduction
... Bit rate is 8 KBytes, and every 20 msec, the sender forms a packet of 160 Bytes + a header to be discussed below The coded voice information is encapsulated into a UDP packet and sent out; some packets may be lost; up to 20 % loss is tolerable; using TCP eliminates loss but at a considerable cos ...
... Bit rate is 8 KBytes, and every 20 msec, the sender forms a packet of 160 Bytes + a header to be discussed below The coded voice information is encapsulated into a UDP packet and sent out; some packets may be lost; up to 20 % loss is tolerable; using TCP eliminates loss but at a considerable cos ...
Content-aware Switch - University of California, Riverside
... Latency reduction for control packets > data packets Control packets take a larger portion for small files ...
... Latency reduction for control packets > data packets Control packets take a larger portion for small files ...
jen-network - Princeton University
... • Don’t want to waste reserved bandwidth – No traffic exchanged during idle periods ...
... • Don’t want to waste reserved bandwidth – No traffic exchanged during idle periods ...
Cookie file
... But browsers often open parallel TCP connections to fetch referenced objects Persistent HTTP Server leaves connection open after sending response Subsequent HTTP messages between same client/server are sent over connection ...
... But browsers often open parallel TCP connections to fetch referenced objects Persistent HTTP Server leaves connection open after sending response Subsequent HTTP messages between same client/server are sent over connection ...
Categories of I/O Devices - NYU Stern School of Business
... • Each transport session has two unique identifiers • (IP address, port number) on server • (IP address, port number) on client • No two clients on one computer can use same source port • Thus, client endpoints are unique, and server computer protocol software can deliver messages to correct server ...
... • Each transport session has two unique identifiers • (IP address, port number) on server • (IP address, port number) on client • No two clients on one computer can use same source port • Thus, client endpoints are unique, and server computer protocol software can deliver messages to correct server ...
Q and A slides
... A: Forwarding tables do change size, theoretically. On hosts and most routers they probably don’t change very often, if ever. They are based on the IP addresses assigned to interfaces, and a default route, which usually comes via DHCP or a routing protocol (which we haven’t talked about). ...
... A: Forwarding tables do change size, theoretically. On hosts and most routers they probably don’t change very often, if ever. They are based on the IP addresses assigned to interfaces, and a default route, which usually comes via DHCP or a routing protocol (which we haven’t talked about). ...
presentation source
... • Monitors a LAN in realtime; prints info about each packet (source/dest, sequence numbers, flags, acknowledgements, options) • Runs on most UNIX variants • The most spectacularly fantastically wonderful network debugging tool on planet Earth; my knee-jerk reaction whenever there is any problem is t ...
... • Monitors a LAN in realtime; prints info about each packet (source/dest, sequence numbers, flags, acknowledgements, options) • Runs on most UNIX variants • The most spectacularly fantastically wonderful network debugging tool on planet Earth; my knee-jerk reaction whenever there is any problem is t ...
Packet Switching
... • Example: Two ATM LANs of a corporation connected by a public ATM network – The public ATM switches only look at the VPI – The ATM switches in the LANs look at the entire 24-bit ...
... • Example: Two ATM LANs of a corporation connected by a public ATM network – The public ATM switches only look at the VPI – The ATM switches in the LANs look at the entire 24-bit ...
ch9
... version of HTTP. Most common are GET and HEAD(fetch status information). See p.653 • Response Messages- The first line begins with version number, a 3 digit code for success, and a text string giving the reason for the response. • Uniform Resource Identifiers-one type is the URL that HTTP uses as ad ...
... version of HTTP. Most common are GET and HEAD(fetch status information). See p.653 • Response Messages- The first line begins with version number, a 3 digit code for success, and a text string giving the reason for the response. • Uniform Resource Identifiers-one type is the URL that HTTP uses as ad ...
Device Methods
... Packet data & headers may be copied from user space This may mean a lot of data copying May avoid this with scatter/gather I/O – send the pieces ...
... Packet data & headers may be copied from user space This may mean a lot of data copying May avoid this with scatter/gather I/O – send the pieces ...
Document
... An ARP packet is carried in a frame header HardwareType: type of physical network (e.g., Ethernet) ProtocolType: type of higher layer protocol (e.g., IP) HLEN & PLEN: length of physical and protocol addresses ...
... An ARP packet is carried in a frame header HardwareType: type of physical network (e.g., Ethernet) ProtocolType: type of higher layer protocol (e.g., IP) HLEN & PLEN: length of physical and protocol addresses ...
