Network Theory Flashcards
A network administrator is using a packet analyzer to determine an issue on the local LAN. Two separate computers are showing an error message on the screen and are unable to communicate with other computers in the same lab. The network administrator
looks at the following output:
SRC MACSRC IPDST MACDST IP
00: 1D:1F:AB:10:7D192.168.1.10:200015:BE:9F:AB:10:1D192.168.1.14:1200
05: DD:1F:AB:10:27192.168.1.10:100022:C7:2F:AB:10:A2192.168.1.15:1300
Given that all the computers in the lab are directly connected to the same switch, and are not using any virtualization technology, at which of the following layers of the OSI model is the problem occurring?
A. Network
B. Application
C. Data link
D. Transport
A. Network
Both computers have the same ip address of 192.168.1.10 which is causing the problem in the network layer.
Which of the following devices implements CSMA/CA virtually through the RTS/CTS protocols?
A. Firewall
B. Router
C. 802.11 AP
D. Switch
C. 802.11 AP
(CSMA/CA is a wireless protocol where computers on a wireless network attempt to avoid collisions by transmitting data only when the channel is sensed to be “idle” .)
A network technician is attempting to connect a new host to existing manufacturing equipment on an Ethernet network. The technician is having issues trying to establish communication between the old equipment and the new host. The technician checks the cabling for breaks and finds that the CAT3 cable in use is in perfect condition. Which of the following should the technician check to ensure the new host will connect?
A. Confirm the new host is using 10GBaseSR due to the manufacturing environment
B. Confirm the new host is compatible with 10BaseT Ethernet
C. Confirm the existing 10Base2 equipment is using the proper frame type
D. Confirm that CSMA/CD is disabled on the Ethernet network
B. Confirm the new host is compatible with 10BaseT Ethernet
(10BASET Ethernet networks are old and slow by todays standards. 10BASET Ethernet networks use CAT3 UTP cabling and offer a maximum bandwidth of just 10Mpbs.)
Before logging into the company network, users are required a sign a document that is to be stored in their personnel file. This standards and policies document is usually called which of the following?
A. SOP
B. BEP
C. AUP
D. SLA
C. AUP
( AUP stands for Acceptable Use Policy. An Acceptable Use Policy defines what a user can or cannot do with his or her computer during business hours. For example, using the company’s Internet connection to look at the sports scores on a sports website may be
deemed inappropriate or unacceptable during business hours. Other examples include the use of social media websites such as Facebook or using Instant Messaging clients to chat to your friends. )
A service provider is unable to maintain connectivity to several remote sites at predetermined speeds. The service provider could be in violation of the:
A. MLA.
B. SLA.
C. SOW.
D. MOU.
B. SLA
A customer has engaged a company to improve the availability of all of the customer’s services and applications, enabling the customer to minimize downtime to a few hours per quarter. Which of the following will document the scope of the activities the company
will provide to the customer, including the intended outcomes?
A. MLA
B. MOU
C. SOW
D. SLA
C. SOW
( SOW stands for statement of work. When a company has been hired for a project that involves many tasks, a statement of work is often issued at the stat of the project. The SOW will outline the tasks or activities in a project, their costs and the timelines for deliverables within the project. In an IT project, the SOW would define what tasks will be performed , why the work is being done and how long each stage of the project will take. )
