Why are structural records used?
What will be an ideal response?
Structural records are used so that the analyst does not need to repeat the specific elements every time the group of elements is part of a larger structure, such as a screen or a report. They may be used on an intermediate level of a data flow diagram, that is, one that is neither the top nor the bottom layer.
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Relational operators all have higher precedence than arithmetic operators.
Answer the following statement true (T) or false (F)
A security model defines ________.
a) privileges b) resource types c) subjects d) both a and c
Configure the network according to the specifications listed. Make sure that you address both the internal and external access rules. Test your network carefully and then save your configuration. You will be asked to demonstrate your network to your instructor for grading. Make sure the ping command operates properly and the access rules are being implemented as specified in the requirements.
The objective of this project is for the students to gain experience configuring VLANs and access
lists for controlling data traffic into and out of the VLANs and the wide-area network connection.
This network setup has two separate sites, Site A and Site B, that are connected through Routers 1
and 2. The network address for Site A is 172.168.0.0. The network address for Site B is
192.168.35.0. IP addressing and subnetting within your network is up to you; however, plan your
network carefully.
Specifics
Site A:
? Research VLAN (PC1), server (S1)
? Finance VLAN (PC2), server (S2)
Site B:
? Office LAN (PC3)
Internal access rules:
? Computers on the Office and Finance VLANs can communicate with the server (S2).
? Only the computers in the Research VLAN can talk to the Research server (S1).
External access rules:
? Only the computers in the Office and Finance LANs can access the wide-area network conne
Answer the following statements true (T) or false (F)
1) To execute the separate programs concurrently, separate processes are required for each. 2) The function os.fork is available in Windows. 3) Function os.wait waits for the SIGINT signal. 4) If we want to wait for a specific process to complete, we can use the function os.waitpid. 5) os.system and os.exec are available on both UNIX and Windows systems.