A packet arrives at a router. The router examines the destination IP address in the packet header and forwards it out the correct interface. The packet is then encapsulated into a frame and sent to the next hop. Which process is the router performing?

De-encapsulation and re-encapsulation

A technician is comparing the OSI and TCP/IP models to explain to a colleague how they relate. The technician notes that the OSI model has seven layers, while the TCP/IP model has four. Which mapping is correct?

OSI Layer 3 maps to the TCP/IP transport layer

OSI Layer 2 maps to the TCP/IP Internet layer

OSI Layer 4 maps to the TCP/IP network access layer

OSI Layer 5, 6, and 7 map to the TCP/IP application layer

Which of the following correctly lists the four layers of the TCP/IP stack from top to bottom?

Application, Internet, Transport, Network Access

Application, Presentation, Session, Transport

Application, Transport, Internet, Network Access

Network Access, Internet, Transport, Application

In the TCP/IP model, which OSI layers are combined into the Application layer?

Session, Presentation, and Application

CiscoCertified Field Technician (CCT)

Domain 1Objective 2

1.2 Identify the Layers of the Host-To-Host Communications Model 800-150 Practice Questions (Page 5)

Part of the 1.0 Networking Foundations domain, which accounts for 20% of the 800-150 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–2 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

7concepts

20%of the exam

Questions 21–25

21application · medium
A packet arrives at a router. The router examines the destination IP address in the packet header and forwards it out the correct interface. The packet is then encapsulated into a frame and sent to the next hop. Which process is the router performing?
Select an answer first
22expert · medium
A technician is comparing the OSI and TCP/IP models to explain to a colleague how they relate. The technician notes that the OSI model has seven layers, while the TCP/IP model has four. Which mapping is correct?
Select an answer first
23foundation · easy
Which of the following correctly lists the four layers of the TCP/IP stack from top to bottom?
Select an answer first
24foundation · easy
What is the protocol data unit (PDU) at the Transport layer?
Select an answer first
25foundation · easy
In the TCP/IP model, which OSI layers are combined into the Application layer?
Select an answer first

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