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1- Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?

A random delay is used to ensure a collision-free link.
A random delay value for each device is assigned by the manufacturer.
A standard delay value could not be agreed upon among networking device vendors.
A random delay helps prevent the stations from experiencing another collision during the transmission.


2-Refer to the exhibit. The small office network shown in the exhibit consists of four computers connected through a hub. Which configuration would cause collisions and errors on the network?

autonegotiation
FastEthernet
peer-to-peer shared resources
administratively configured full duplex





3-Which statement describes how CSMA/CD on an Ethernet segment manages the retransmission of frames after a collision occurs?

The first device to detect the collision has the priority for retransmission.
The device with the lowest MAC address determines the retransmission priority.
The devices on the network segment hold an election for priority to retransmit data
The devices transmitting when the collision occurs DO NOT have priority for retransmission.

4-Which characteristics describe carrier sense multiple access collision detect (CSMA/CD)? (Choose three.)


reliable
point-to-point
nondeterministic
connection-oriented
collision environment
first-come, first-served approach

5-(What are three functions of a NIC in a PC? (Choose three
A NIC connects the PC to the network media.
A NIC detects collisions on the Ethernet segment.
A NIC checks the formatting of data before it is transmitted.
A NIC passes the contents of selected frames to the upper OSI layers.
A NIC acknowledges and retransmits data that was not received properly.
A NIC discards frames when the destination IP address does not match the local host.



6-Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?

No collisions will occur on this link.
Only one of the devices can transmit at a time.
The switch will have priority for transmitting data.
The devices will default back to half duplex if excessive collisions occur.

* السؤال الإخير جهاز مربوط بسويتش ....


أتمنى من الأخوان الخبراء الرد والتأكد من الأجابات وياريت تقدرون تشرحون لي كل جواب إذا ماعندكم مانع .... وشاكر لكم تعاونكم وحسن نيتكم وجعله الله بميزان حسناتكم
ومشكووورين

السؤال الاول
A random delay is used to ensure a collision-free link
السؤال التانى
administratively configured full duplex
السؤال الثالث
The devices transmitting when the collision occurs DO NOT have priority for retransmission
الرابع
nondeterministic
collision environment
اما الاختيار الثالث فلا ادرى فى وجهت نظرى لا يوجد شىء من الباقى
الخامس
A NIC connects the PC to the network media.
A NIC detects collisions on the Ethernet segment
A NIC passes the contents of selected frames to the upper OSI layers
السادس
.No collisions will occur on this link
و بالنسبه للشرح اعدك ان اشرحهم لك و لكن انا وقتى ضيق الان و غدا يتم الشرح و ارجو من الاعضاء ان يراجعونى فى السؤال الخامس

جزاك الله خيرا

for the first Question

A random delay helps prevent the stations from experiencing another collision during the transmission

مشكوررر ياأخوي على جهدك ... وجزاك الله خيير ... وليت من علي 2060 وايمن المشاركه ومساعدتنا ...

السؤال الاول
A random delay is used to ensure a collision-free link.
السؤال الثانى
administratively configured full duplex
السؤال الثالث
The devices on the network segment hold an election for priority to retransmit data
السؤال الرابع
collision environment
first-come, first-served approach
nondeterministic
السؤال الخامس
A NIC connects the PC to the network media.
A NIC detects collisions on the Ethernet segment
A NIC checks the formatting of data before it is transmitted
السؤال السادس
No collisions will occur on this link.


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