Term
| What is the name for the protocol data unit (PDU) of the Data Link layer? |
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Term
| Static electricity can cause what two types of damage in electronic components? (select 2) |
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Definition
| Upset and Catastrophic Failure |
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Term
| Which layer of the OSI model encapsulates Network layer packets? |
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| Select the layer of the OSI model that is responsible for reformatting, compressing, and/or encrypting data in a way that the application on the receiving end can read: |
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| Traditional MAC addresses are broken into two parts. Name these two parts. |
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| A loopback IP address begins with what number? |
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| You are the network manager for a computer training center that allows clients to bring their own laptops to class for learning and taking notes. Clients need access to the Internet, so you have configured your network's DHCP server to issue them IP addresses automatically. What DHCP option should you modify to make sure you are not wasting addresses that were used by clients who have completed a class and no longer need them? |
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Definition
| Lease Duration For Client Computers |
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Term
| Which of the following ports are used by DNS? (Select 2) |
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Definition
| TCP port 53 and UDP port 53 |
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Term
| DNS follows a centralized database model. |
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Term
| In dotted decimal notation, a(n) ____ separates each decimal. |
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| What devices are the highest authorities in the domain name system hierarchy? |
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| A(n) ____ address represents any one interface from a group of interfaces, any one of which can accept a transmission. |
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| You issue a transmission from your workstation to the following socket address on your LAN: 10.1.1.145:110. Assuming your network uses standard port designations, what Application layer protocol are you using? |
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Term
| What are the last two parts of a host name known as? |
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Term
| What field in a TCP segment is used to determine if an arriving data unit exactly matches the data unit sent by the source? |
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Term
| Which routing protocol does an exterior router use to collect data to build its routing tables? |
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Term
| What netstat command option lists only current connections, including IP addresses and port numbers? |
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Term
| What command can be used on a Cisco router to view the routing table? |
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Term
| What routing protocol criteria is defined as the time it takes to recognize a best path change in the event of a network outage? |
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Term
| A modern ASN consists of how many bits? |
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Definition
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Term
| What field in an IPv4 packet informs routers the level of precedence they should apply when processing an incoming packet? |
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Definition
| Differentiated Services (DiffServ) |
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Term
| In a TCP segment, what field indicates how many bytes the sender can issue to a receiver while acknowledgement for the segment is outstanding? |
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Term
| What address does ARP work in conjunction with IPv4 to discover? |
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Term
| When a router can’t determine a path to a message’s destination, what does it do with the packet? |
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Definition
| send them to gateway of last resort |
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Term
| Which type of protocol is useful when data must be transferred quickly? |
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