When doing a mail merge, the main document contains the information that will change with each letter or label

What must you do before you can create a crosstab query that references more than one table?

A) Make sure the relationships have been properly created in the Relationships window. B) Run an append query to combine the records from the various tables. C) Run a make table query and use that as the source for the crosstab query. D) Create a select query which includes the fields from the various tables you want included in the crosstab query.

A security analyst wants to harden the company’s VoIP PBX. The analyst is worried that credentials may be intercepted and compromised when IP phones authenticate with the BPX. Which of the following would best prevent this from occurring?

A. Implement SRTP between the phones and the PBX. B. Place the phones and PBX in their own VLAN. C. Restrict the phone connections to the PBX. D. Require SIPS on connections to the PBX.