1-17. 1-18. 1-19. 1-20. The interface between the telecommunications  access software  and  the  application programs is known by which of the following terms? 1. Network  operating  system 2. Network  system  software 3. Telecommunications access  software 4. Teleprocessing  monitor Electronic mail is classified as what type of software  program? 1. Communications 2. Utility 3. Network  access 4. Network  operating Which of the following terms describes  the  prevention  of files from being updated by more than one user at a time? 1. Data  integrity 2. Data  validity 3. System  access 4. System  security The different levels of access can be designated by which  of  the  following terms? 1. Private 2. Public 3. Shared 4. Each of the above 1-21. 1-22. 1-23. 1-24. Network  software  often provides some type of locking   capability.   This locking  feature  prevents which of the following actions? 1. Access to the file while it is being worked on 2. Logging onto more than one workstation at a time 3. Security  violations  from occurring 4. Unauthorized  users  from logging onto the network Once the software is installed on the network, it must be tested. 1. True 2. False How many methods are used to provide  service  restoration after  system  degradation? 1. Five 2. Two 3. Three 4. Four Which of the following factors does not contribute to the flexibility of a network? 1. Cabling 2. Protocol 3. Topology 4. Network  system  software 3