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Network Services
Midterm/Final
| Question | Answer |
|---|---|
| What are three elements of network management? | Security, Performance, Reliability |
| What is the difference between a Manager and an Agent? | agent = software that send alerts, manager = react to received alerts |
| What is MIB? | Management Information Base |
| What are management Proxies? | Entities that provide management information on behalf of other entities. |
| What is SNMP? | Simple Network Management Protocol |
| Why would you do a network audit? | Know equipment on network, location, normal operation. Then you know when something is abnormal. |
| What is a baseline? | Normal status on the network, provides a reference point |
| Name five types of audits. | Inventory, Facility, Operational, Efficiency, Security |
| What is the difference between the five audit types above? | They should be done in order Inventory > Security |
| What is EMI? | Electromagnetic Interference |
| What is RFI? | Radio Frequency Interference |
| What is SOAP? | Simple Object Access Protocol |
| What is NFS? | Network File System |
| What is a RFC? | Request For Comments |
| What is CIFS? | Common Internet File System. Microsoft's renaming of future versions of the SMB protocol. |
| What is SMB the same as? | CIFS |
| What does SMB stand for? | Server Message Block |
| What is SAMBA? | Unix applications that speak the SMB protocol |
| What is smbd? | Daemon that allows file and printer sharing on an SMB network and provides authentication and authorization for SMB clients. |
| What is nmbd? | Daemon that looks after the WINS (windows internet name service) and assists with browsing. |
| What is SFU and what can it do? | Service for Unix, file sharing, remote access & admin, password synch, common directory management, common set of utilities, and a shell. |
| What does SAN stand for? | Storage Area Network |
| What does NAS stand for? | Network Attached Storage |
| What does DAS stand for? | Direct Attached Storage |
| What does SCSI stand for? | Small Computer System Interface |
| What is Fibre Channel? | Technology for transmitting data between computer devices |
| What is iSCI? | SCSI over and IP network |
| What is the difference between Postscript and PCL? | Postscript was developed initially by Adobe |
| What is a WinPrinter? | Printer that usually will only come with Windows drivers |
| What is CUPS? | Common Unix Printing System |
| What is Raster Graphics? | Bitmapped graphics |
| What is Vector Graphics? | Mathematically generated points, lines, and shapes |
| What does BIND stand for? | Berkeley Internet Name Domain |
| What is the purpose of using a PROXY server? | Filter out content and improve performance through caching |
| What is a FIREWALL? | A system designed to prevent unauthorized access to or from a private network (intranet). |
| Name three techniques used by firewalls. | Packet filter, Application gateway, Stateful inspection |
| What is IP spoofing? | An intruder sends messages to a computer with an IP address indicating that the message is coming from a trusted host. |
| What does DMZ stand for? | Demilitarized Zone |
| What is a gateway? | A combination of hardware and software that links two different types of networks. |
| What is an Extranet? | business-to-business intranet that allows limited, controlled, secure access between a company's intranet and designated, authenticated users from remote locations |
| What is XML? | Extensible Markup Language |
| What is LDAP? | Lightweight Directory Access Protocol |
| What is ADSL? | Asymmetric Digital Subscriber Line |
| What is IMAP? | Internet Message Access Protocol |
| What is the difference between Unicode and ASCII? | ASCII = 8 bit, Unicode = 16 bit |
| What is MIME? | Multipurpose Internet Mail Extensions |
| What is SMTP? | Simple Mail Transfer Protocol |
| What is MTA? | Message Transfer Agent |
| Name two examples of MTA's. | UNIX sendmail and Microsoft Exchange Server |
| What are two examples of MUA? | Eudora and Outlook |
| What does MAPI stand for? | Messaging Application Programming Interface |
| What does CGI stand for? | Common Gateway Interface |
| Name some technologies to create dynamic web sites. | Java, Javascript, Perl, C/C++, and ASP |
| What is a persistent connection in HTTP? | single TCP connection, more efficient |
| What is multi‐threading? | Manage multiple threads of a single program at the same time. Allows for multiple users on a single program. |
| What is inetd? | Internet Service Daemon, provides internet services on unix systems |
| Describe load balancing using DNS as described in notes. | Multiple copies of site on separate physical servers. |
| What are problems with load balancing using DNS? Choose best answer. | Difficult to determine which IP client will use, will use same IP as long as it's cached, possible that server could get overloaded still. |
| How can you speed up web page access from a single server? Choose the best answer. | Better hardware (disk, memory, CPU), memory generally most important, proxy server, SSL acceleration if encrypted. |
| What does SSL stand for? | Secure Sockets Layer |
| What does TLS stand for? | Transport Layer Security |
| What does XML stand for? | Extensible Markup Language |
| What is a disadvantage of CGI? | SLOW, each request of dynamic document launches a new program. |
| What advantage does servlets have over ASPs? | Cached |
| What is Oracle? | Company which specializes in database tools/hardware. |
| What does PHP now stand for? | Hypertext Preprocessor |
| What port is used by default for HTTP? | 80 |
| What does JSP stand for? | JavaServer Pages |
| What is Apache? | Popular, reliable web server |
| What does RDB stand for? | Relational Database |
| What does ASP stand for? | Microsoft Active Server Pages |
| What does S/MIME stand for? | Secure/Multipurpose Internet Mail Extensions |
| What does ANSI stand for? | American National Standards Institute |
| What does SQL stand for? | Structured Query Language |
| Name three email clients. | Outlook, Eudora, Thunderbird |
| What does URL stand for? | Uniform Resource Locator |
| What does JDBC stand for? | Java Database Connectivity |
| What does HTTP stand for? | Hypertext Transfer Protocol |
| What does MHTML stand for? | MIME HTML, Multi-Purpose Internet Mail Extensions Hypertext Transfer Protocol |
| What is concurrency control? | Allows two people to work on same database record at same time without corrupting data. |
| What does NNTP stand for? | Network News Transfer Protocol |
| What is Availability? | Ability to support non-stop (24x7) operations. |
| Which of the following is an example of a URL? | |
| Another term for Application Server is? | Middleware |
| What is Normalization? | Organizing database to minimize redundancy |
| What is a differential backup? | Only data changed since last backup |
| What is a transaction log? | Tracks all modifications performed within a database. |
| What does it mean to rollback a transaction? | Allows users to "undo" database transactions |
| What does LDAP stand for? | Lightweight Directory Access Protocol |
| What does ‘Committed’ mean in database terms? | Permanently stored transactions in database |
| What is DB2? | IBM Database Server Software |
| What is MySQL? | Open source relational database system (free) |
| Explain what three‐tiered means? | Database, Client Program, and Application Server |
| What does J2EE stand for? | Java Platform, Enterprise Edition |
| What does ODBC stand for? | Open Database Connectivity |
| What does SOAP stand for? | Simple Object Access protocol |
| What does DBMS stand for? | Database Management Systems |
| What is Scalability? | Ability to grow and handle much larger demands. |
| What would let you log into a network, then access various resources without needing to provide your username. username. | LDAP |
| What is more secure SSL or TLS? | TLS |