199-01 · Question #218
A single client-server TCP connection is made through two Steelhead appliances (default in-path deployment).This is a lab-controlled environment and no other client-server connections are made.How…
The correct answer is C. 22. See the full explanation below for the reasoning.
Question
A single client-server TCP connection is made through two Steelhead appliances (default in-path deployment).This is a lab-controlled environment and no other client-server connections are made.How many TCP connections will exist between the in-path interfaces of both Steelhead appliances after the user connection is fully established?
Options
- A1
- B20
- C22
- D42
How the community answered
(32 responses)- A9% (3)
- B3% (1)
- C84% (27)
- D3% (1)
Community Discussion
6
Viktor S.Dec 7, 2025Took the exam in 2019, blanked, drew out the inner channel on scratch paper and counted: 1 control plus 20 data plus 1 original equals 22. Answer C, stop guessing A like it is a single pipe.
Eleni E.Nov 9, 2025The "22" answer trips people up because you have to actually count what the Steelhead builds: the original client-to-server flow gets intercepted and replaced by a fan of inner connections over the optimized channel, and when you add the two outer half-connections on each side plus the in-path control plane traffic, the tally comes to 22 TCP connections across those in-path interfaces. Option D (42) is a red herring that shows up when you double-count or confuse total appliance connections with just the in-path segment, so stay disciplined and count only what crosses between the two in-path interfaces.
Anjali D.Dec 15, 2025Our group landed on C, 22, because the two Steelheads spin up a pool of 20 inner connections between their in-path interfaces for the optimized channel, then you add the 2 outer connections on either end of the WAN to get to 22 total. My question is whether anyone has seen documentation that clarifies what triggers the pool size specifically, because I keep wondering if 20 is just a fixed default or if it scales with something like bandwidth policy or connection type, and that distinction might matter for follow-on questions on the exam.
Eleni E.Dec 16, 2025The pool size is not a fixed default you can ignore, it scales with the WAN bandwidth setting configured on the in-path rule, so if your exam question specifies a non-default bandwidth policy you may land on a different inner connection count than 20.
Mateus R.Nov 15, 2025Forty-two, the full channel pool fills both sides up.
Hiroshi T.Nov 17, 2025Mateus, the correct answer is C, not 42, because the vendor documentation specifies that value only when a single side is saturated, not the full bidirectional pool. Check the official reference guide on channel allocation before the exam, it breaks the two cases out clearly.