<u>Solution:</u>
a) False. Piggyback is used only for efficiency. If there's no data packet to be piggybacked to, then B will just send the acknowledgement packet.
b) False. It is the size of the receiver's buffer that's never changed. RcvWindow is the part of the receiver's buffer that's changing all the time depending on the processing capability at the receiver's side and the network traffic.
c) The given statement is True.
d)
False. The sequence number of the subsequent segment depends on the number of 8-byte characters in the current segment.
e) True. Every TCP segment has a current value of rwnd in the receive window.
f) False. Next_RTT = alpha * last_estimated_RTT + (1-alpha)*newly_collected_RTT_sample. In this case even though the last sampleRTT which is the newly_collected_RTT_sample is 1sec, the next_RTT still depends on alpha and last_estimated_RTT. Therefore, the next_RTT is not necessarily greater than 1sec.
g)
False. The acknowledgement number has nothing to do with the sequence number. The ack. number indicates the next sequence number A is expecting from B.
When two tables share the same primary key, they share a
A. one-to-one relationship.
Explanation:
- One-to-one relationship is a type of cardinality that refers to the relationship between two entities A and B in which one element of A may only be linked to one element of B, or the opposite way.
- A one-to-one relationship in a relational database occurs when one parent record or field has either zero or one child record only.
- These relationships are the easiest to represent in databases because both the parent and child records may be in the same table.
- One-to-one relationships associate one record in one table with a single record in the other table.
- These relationships are frequently used to indicate critical relationships so you can get the data you need to run your business.
- A one-to-one relationship is a link between the information in two tables, where each record in each table only appears once.
Solution:
The Bureau of Labor Statistics (BLS) of the U.S. Department of Labor is the principal federal agency responsible for measuring labor market activity, working conditions, and price changes in the economy. Its mission is to collect, analyze, and disseminate essential economic information to support public and private decision making. As an independent statistical agency, BLS serves its diverse user communities by providing products and services that are accurate, objective, relevant, timely, and accessible.
This is the required answer.
Answer:
a. Edit a Profile to "Enable Chatter" for the subset of users.
b. Create a Permission Set with the "Enable Chatter" permission for the subset of users
Explanation:
There are two ways to limit Chatter access during roll-out to a subset of Sales force users
- through user profiles
- through permission sets
"Enable Chatter" permission is added to the user profiles and permission sets during Chatter profile based roll-out.
a.
- The system Administrator has to log in as Sales force administrator to perform this action.
- Then select Profiles from Setup.
- Click on Edit for the custom user profile.
- Tick the Enable Chatter check box in the Administrative Permissions section.
b.
- Search through the Permission Sets in Setup.
- System section appears. Select System Permissions in that section.
- Click on the Edit button
.
- Tick the Enable Chatter check box.
The correct answer is cd they are the closest <span />
