William Stallings Data and Computer Communications
... Station listens (for max round trip time)plus small increment If ACK, fine. If not, retransmit If no ACK after repeated transmissions, give up Frame check sequence (as in HDLC) If frame OK and address matches receiver, send ACK Frame may be damaged by noise or by another station transmit ...
... Station listens (for max round trip time)plus small increment If ACK, fine. If not, retransmit If no ACK after repeated transmissions, give up Frame check sequence (as in HDLC) If frame OK and address matches receiver, send ACK Frame may be damaged by noise or by another station transmit ...
MCS-377 Intra-term Exam 2 Solutions
... prevents some instances. Traceroute uses the TTL field to probe to a given depth, and then receives an ICMP message in response. 6. [ 10 Points ] A computer receives the eight data bits 10001011 followed by the three CRC bits 101; the generator is 1001. Does this indicate that one or more bits were ...
... prevents some instances. Traceroute uses the TTL field to probe to a given depth, and then receives an ICMP message in response. 6. [ 10 Points ] A computer receives the eight data bits 10001011 followed by the three CRC bits 101; the generator is 1001. Does this indicate that one or more bits were ...
Document
... Switches maintain state and forwarding capabilities even in the event of software or hardware failures ...
... Switches maintain state and forwarding capabilities even in the event of software or hardware failures ...
NAME: Computer Science 461 Midterm Exam March 14, 2014
... b. Both IP routers and Ethernet hubs drop packets when there is congestion. c. Ethernet switches learn the location of hosts on their network by observing the frames they process. d. If an IP router doesn’t know the location of a destination IP address in a packet it receives, it will flood the pack ...
... b. Both IP routers and Ethernet hubs drop packets when there is congestion. c. Ethernet switches learn the location of hosts on their network by observing the frames they process. d. If an IP router doesn’t know the location of a destination IP address in a packet it receives, it will flood the pack ...
Competencies for ITNW 2413.doc
... • Describe the physical issues associated with cabling networking equipment to work over a WAN link • Explain the fundamentals of Ethernet media access • Explain what a collision is and how collisions are detected • Explain the characteristics associated with auto negotiation on Ethernet networks ...
... • Describe the physical issues associated with cabling networking equipment to work over a WAN link • Explain the fundamentals of Ethernet media access • Explain what a collision is and how collisions are detected • Explain the characteristics associated with auto negotiation on Ethernet networks ...
CS412 Computer Networks - Winona State University
... Q: How can ARP’s performance be improved (i.e., to reduce the broadcasting traffic)? A: one of our favorite mechanisms in CS _________ ...
... Q: How can ARP’s performance be improved (i.e., to reduce the broadcasting traffic)? A: one of our favorite mechanisms in CS _________ ...
Introduction to the MEF
... To reduce operating and capital expenditures, many enterprises are considering consolidating their voice, data, and video traffic onto a single converged, packetbased network Despite the availability of Ethernet metro and WAN services, many enterprises are still searching for solutions that fully ad ...
... To reduce operating and capital expenditures, many enterprises are considering consolidating their voice, data, and video traffic onto a single converged, packetbased network Despite the availability of Ethernet metro and WAN services, many enterprises are still searching for solutions that fully ad ...
switch
... Switched Hierarchy • Switches allow network manager to put bandwidth where it is needed. – Some users get 10 Mbps shared (hub) – Some users get 10 Mbps dedicated (switch) – Some users get 100 Mbps shared (hub) ...
... Switched Hierarchy • Switches allow network manager to put bandwidth where it is needed. – Some users get 10 Mbps shared (hub) – Some users get 10 Mbps dedicated (switch) – Some users get 100 Mbps shared (hub) ...
CS61C - Lecture 13
... using the Internet in the early 1990s to research cochlear implants, electronic devices that work with the ear's own physiology to enable hearing. Unlike hearing aids, which amplify all sounds equally, cochlear implants allow users to clearly distinguish voices-even to converse on the phone. Thanks ...
... using the Internet in the early 1990s to research cochlear implants, electronic devices that work with the ear's own physiology to enable hearing. Unlike hearing aids, which amplify all sounds equally, cochlear implants allow users to clearly distinguish voices-even to converse on the phone. Thanks ...
Routing
... • OK for lightly used network • But means that many workstations all working concurrently on the same network segment can create a lot of collisions • Result can be a severely reduced response ...
... • OK for lightly used network • But means that many workstations all working concurrently on the same network segment can create a lot of collisions • Result can be a severely reduced response ...
PPT
... Not as time sensitive as voice or video Interactive Voice/Video Fixed Rate (if not compressed) *Not sensitive to errors Fixed or Variable Rate (if compressed) *Sensitive to errors Time Sensitive ...
... Not as time sensitive as voice or video Interactive Voice/Video Fixed Rate (if not compressed) *Not sensitive to errors Fixed or Variable Rate (if compressed) *Sensitive to errors Time Sensitive ...
slides 1
... Cheap way to provide reliability We all need to communicate It is much easier to share resources Allows a whole set of distributed applications A whole set of future problems need machine communication • Collaboration: Much easier for users to collaborate through network resources (such as network f ...
... Cheap way to provide reliability We all need to communicate It is much easier to share resources Allows a whole set of distributed applications A whole set of future problems need machine communication • Collaboration: Much easier for users to collaborate through network resources (such as network f ...
Ethernet Access: Draw the line, Demarc your Network
... the way up to the last mile properly and efficiently while keeping costs manageable. While early adopters would rely on best-effort services, these are no longer acceptable and major enterprise customers will not move on to an Ethernet service until Ethernet SLAs are guaranteed and verified by carri ...
... the way up to the last mile properly and efficiently while keeping costs manageable. While early adopters would rely on best-effort services, these are no longer acceptable and major enterprise customers will not move on to an Ethernet service until Ethernet SLAs are guaranteed and verified by carri ...
Alcatel-Lucent ISA-ES1 and ES4 Series
... aggregate bandwidth transported for various VC-X x Nv VC concatenation combinations on an ISA-ES. Table 1 presents a detailed view of the ISA-ES capacities in terms of maximum VC12/3/4, VC groups (VCG) by VC-12/3/4 and VC-12/3/4 per VCG. ...
... aggregate bandwidth transported for various VC-X x Nv VC concatenation combinations on an ISA-ES. Table 1 presents a detailed view of the ISA-ES capacities in terms of maximum VC12/3/4, VC groups (VCG) by VC-12/3/4 and VC-12/3/4 per VCG. ...
Marks for each part of each question are
... be received correctly so that we can correctly recover the bit. Clearly this scheme is using 8 times the capacity, hence the bandwidth, of a conventional modulation scheme. By varying the chipping ratio we can spread the signal over an arbitrary bandwidth. b) i) The sequence 1010 1110 0011 0111 1111 ...
... be received correctly so that we can correctly recover the bit. Clearly this scheme is using 8 times the capacity, hence the bandwidth, of a conventional modulation scheme. By varying the chipping ratio we can spread the signal over an arbitrary bandwidth. b) i) The sequence 1010 1110 0011 0111 1111 ...
Tutorial - University of Hawaii
... interface cards) send at the same time, they can detect the collision and retransmit • When sending to a satellite, senders cannot detect a collision • Satellite broadcasts to everyone, so a ground station can retransmit if it doesn’t see its message in the broadcast ...
... interface cards) send at the same time, they can detect the collision and retransmit • When sending to a satellite, senders cannot detect a collision • Satellite broadcasts to everyone, so a ground station can retransmit if it doesn’t see its message in the broadcast ...
Document
... Transfers data packets between computers in a specific network. In a WAN or an internetwork this involves the generation of a route passing through routers. In a single LAN, no routing is required. Responsible for transmission of packets between nodes that are directly connected by a physical link. ...
... Transfers data packets between computers in a specific network. In a WAN or an internetwork this involves the generation of a route passing through routers. In a single LAN, no routing is required. Responsible for transmission of packets between nodes that are directly connected by a physical link. ...
10/100/1000 and Gig-E Testing SmartClass™ Ethernet
... that the provisioned path in the network will carry IP traffic to its destination. The first step in verifying this end-to-end connectivity is to perform an IP Ping. If the user needs to segment a problem further or map the network connections, the SmartClass Ethernet can be used to perform Tracerou ...
... that the provisioned path in the network will carry IP traffic to its destination. The first step in verifying this end-to-end connectivity is to perform an IP Ping. If the user needs to segment a problem further or map the network connections, the SmartClass Ethernet can be used to perform Tracerou ...
9388 Datasheet
... SSH: utilizes SSL and data compression technologies to provide a secure and efficient means to control, communicate with, and transfer data to or from the master clock remotely. SCP: is used to securely transfer files to and from the time server over an SSH session. SFTP: is an FTP replacement that ...
... SSH: utilizes SSL and data compression technologies to provide a secure and efficient means to control, communicate with, and transfer data to or from the master clock remotely. SCP: is used to securely transfer files to and from the time server over an SSH session. SFTP: is an FTP replacement that ...
CS578 IT Architecture
... OSI Reference Model • The OSI Reference Model describes seven layers of related functions that are needed at each end when a message is sent from one party to another party in a network. • An existing network product or program can be described in part by where it fits into this layered structure. ...
... OSI Reference Model • The OSI Reference Model describes seven layers of related functions that are needed at each end when a message is sent from one party to another party in a network. • An existing network product or program can be described in part by where it fits into this layered structure. ...