What is REX?

Networking Interview Questions and Answers

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77. What is REX?

Request to Exit (REX) - A signal that informs the controller that someone has requested to exit from a secure area.

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Other Interview Questions

• What is an Object server?
• What is a Transaction server?
• What is a Database Server?
• What are the most typical functional units of the Client/Server applications?
• What are all the Extended services provided by the OS?
• What are Triggers and Rules?
• What is meant by Transparency?
• What are TP-Lite and TP-Heavy Monitors?
• What are the two types of OLTP?
• What is a Web server?
• What are Super servers?
• What is a TP Monitor?
• TP Monitor does mainly two things extremely well. They are Process management and Transaction management.?
• What is meant by Asymmetrical protocols?
• What are the types of Transparencies?
• What is the difference between trigger and rule?
• What are called Transactions?
• What are the building blocks of Client/Server?
• Explain the building blocks of Client/Server?
• The middleware buliding block runs on both the client and server sides of an application. It is broken into three categories:-
• What are all the Base services provided by the OS?
• What are the roles of SQL?
• What is Structured Query Langauge (SQL)?
• What are the characteristics of Client/Server?
• What is Remote Procedure Call (RPC)?
• What are the main components of Transaction-based Systems?
• What are the three types of SQL database server architecture?
• What are the Classification of clients?
• What are called Non-GUI clients, GUI Clients and OOUI Clients?
• What is Message Oriented Middleware (MOM)?
• What is meant by Middleware?
• What are the functions of the typical server program?
• What is meant by Symmentric Multiprocessing (SMP)?
• What are Service-specific middleware?
• What are General Middleware?
• What is meant by Asymmetric Multiprocessing (AMP)?
• What is OLTP?
• What is meant by 3-Tier architecture?
• What is meant by 2-Tier architecture?
• What is Load balancing?
• What are called Fat clients and Fat servers?
• What is meant by Horizontal scaling and Vertical scaling?
• What is Groupware server?
• What are the two broad classes of middleware?
• What are the types of Servers?
• What is a File server?
• What are the five major technologies that can be used to create Client/Server applications?
• What is Client/Server?
• List out the benefits obtained by using the Client/Server oriented TP Monitors?
• What are the services provided by the Operating System?
• What is ACID property?
• What are Stored procedures?
• What is wide-mouth frog?
• What is passive topology?
• What is region?
• What is virtual channel?
• Difference between the communication and transmission?
• What is the difference between TFTP and FTP application layer protocols?
• What are the advantages and disadvantages of the three types of routing tables?
• What is Beaconing?
• What does the Mount protocol do ?
• What are Digrams and Trigrams?
• What is the HELLO protocol used for?
• What is the minimum and maximum length of the header in the TCP segment and IP datagram?
• What do you meant by "triple X" in Networks?
• What is attenuation?
• What is Protocol Data Unit?
• What are the data units at different layers of the TCP / IP protocol suite?
• What is difference between ARP and RARP?
• What is MAC address?
• What is terminal emulation, in which layer it comes?
• What are the types of Transmission media?
• What are major types of networks and explain?
• What is SAP?
• What is multicast routing?
• What is the difference between routable and non- routable protocols?
• What is REX?
• What are the different type of networking / internetworking devices?
• What is redirector?
• What is packet filter?
• What is logical link control?
• What is traffic shaping?
• What is NETBIOS and NETBEUI?
• Why should you care about the OSI Reference Model?
• What is Proxy ARP?
• What is EGP (Exterior Gateway Protocol)?
• What is IGP (Interior Gateway Protocol)?
• What is OSPF?
• What is Kerberos?
• What is SLIP (Serial Line Interface Protocol)?
• What is Mail Gateway?
• What is RIP (Routing Information Protocol)?
• What is NVT (Network Virtual Terminal)?
• What is source route?
• What is BGP (Border Gateway Protocol)?
• What is Gateway-to-Gateway protocol?
• What is Project 802?
• What is silly window syndrome?
• What is a Multi-homed Host?
• What is autonomous system?
• What is the difference between interior and exterior neighbor gateways?
• What is MAU?
• Explain 5-4-3 rule.?
• What is difference between baseband and broadband transmission?
• What is ICMP?
• What is Brouter?
• What is frame relay, in which layer it comes?
• What is External Data Representation?
• What is Bandwidth?
• What protocol is used by DNS name servers?
• What is the range of addresses in the classes of internet addresses?
• What are the important topologies for networks?
• Difference between bit rate and baud rate?
• What is anonymous FTP and why would you use it?
• What is the difference between an unspecified passive open and a fully specified passive open?
• What is virtual path?
• Explain the function of Transmission Control Block?
• What is a DNS resource record?
• What is a pseudo tty?
• What is the Network Time Protocol?
• What is mesh network?
• What is RAID?
• What is a Management Information Base (MIB)?
• What is cladding?
• What is subnet?
• What is subnet?
• What is point-to-point protocol?
• What are 10Base2, 10Base5 and 10BaseT Ethernet LANs ?
• What are the possible ways of data exchange?
• What are the two types of transmission technology available?
• How do I convert a numeric IP address like 192.18.97.39 into a hostname like java.sun.com?