CST 1215
The exec family of commands—execl, execv, execle, execlp and execvp—is used to start execution of a new program from another program
T
The physical topology of a network may not reflect its logical topology.
T
When using the distributed-queue, dual bus (DQDB) protocol, transmission on each bus consists of a steady stream of fixed-size slots
T
In UNIX, the process table is set up when the process is created and is deleted when the process terminates
T
Addressing protocols are normally unrelated to the network topology and geographic location of each site
F
In a bus network topology, devices are physically connected by means of cables that run between them, and the cables pass through a centralized controller mechanism called the bus
F
In the virtual circuit approach to data transmission, the destination and packet sequence number are added to the information identifying the packet's message
F
The UNIX kernel does not reside in memory permanently; that is, it can be swapped out when needed to provide more space for applications
F
The portability of UNIX is attributed to the fact that most of it is written in the high-level language Java
F
Typically, a host at one site, called the client, has resources that a host at another site, called the server, wants to use
F
UNIX Version 4 was a huge innovation at the time it was released because it was device independent
F
UNIX has grown to become one of the most widely used operating systems in history.
F
Round robin access control is an inefficient technique when there are many nodes transmitting over long periods of time
T
Star topology permits easy routing because a central station knows the path to all other sites
T
The Processor Manager of a UNIX system kernel handles the allocation of the CPU, process scheduling, and the satisfaction of process requests
T
The Transmission Control Protocol/Internet Protocol (TCP/IP) reference model is the basis for Internet communications and is the most widely used network layer protocol today.
T
Circuit switching is a communication model in which a dedicated communication path is established between two hosts
T
Demand paging requires more complicated hardware configurations than swapping in that it increases the system overhead and under heavy loads, might lead to thrashing
T
Ethernet is the most widely known CSMA/CD protocol
T
IBM and Hewlett-Packard were among the companies that established The Open Group, which still owns the trademark to the name UNIX
T
